Can you recommend some system novels about summoning monsters?

Time stopped at eighteen for Ji Yi, and now all she wants to do is pick up from where she left off. Her career depends on it, and on top of that, she has to survive a fake marriage turned real! Some missed opportunities are irreplaceable, and some misunderstandings between them have proven near-fatal, but for He Jichen, he isn’t just a pretty face—he’s an opportunist. They may have lost their prime years together, but He Jichen is more than willing to spend his remaining years with her. If only she would just trust him… Will Ji Yi be able to find true love in this life? Can she outmaneuver all the snakes plotting her downfall? Only time will tell...

Keeley, a simple plain Jane, hits the jackpot. [No, she did not win the lottery!] At least that's what she thinks when she marries the most eligible bachelor in New York City: Aaron, a wealthy cold-hearted heartthrob and Tycoon. She wants to show the world that she deserves her position and bends over backward to fit into his world. One beautiful day, Aaron hands her a document asking her to sign. A divorce paper... "She's pregnant, and I need to take responsibility." That is the last thing that keeps on playing in her mind before she takes her last breath. Keeley dies, a 'hit and run'. [End of story. Not!] For some unexplainable reason, she wakes up as her younger self. A young high school girl, around the time when she first meets her cheating husband. Remembering her life with Aaron before she died, she makes a promise to herself that she will do everything in her power to avoid him at all costs. Will she be able to keep her promise when Aaron has his own plans as well, specifically for her? Or will she repeat history and fall for him once more... Why not journey with me and find out the truth behind their story. *Cover art by polkadottedscrunchie*

Being sucked into a fantasy world that nobody leaves doesn't sound half bad to Cain. He was a high school dropout with a drinking problem, living off disability due to his poor health, so it's not like he had much to lose except a few faithful friends he didn't talk to enough. After a long night of drinking, Cain wakes up looking at what he believes to be the character creation screen of one of his beloved virtual reality games, but with no recollection of having purchased it. His unwitting choice to use the Random Character Creation option, unaware that the choice would be irreversible, sends him into this new world as a Puppet Master, a Summoning based class nobody else in the starting zone has ever heard of. But as he soon realizes, this is no game, him and hundreds of others have been brought to another world with no instructions, no clear goals and no way home. It's a second chance to live a good life, but what will Cain be able to make of it?

In a world where dungeons have materialised for 3,000 years, wealth and power pour like a waterfall, throwing the world's balance into chaos. As people rejoiced in newfound riches and opportunities, the impoverished finally found a way to escape poverty. But with power came the need for control, and a certain occupation was created to manage those who dared to enter the dungeons. The Explorer's Guild was born with many eager adventurers seeking to enter these dark and dangerous places. Those brave enough to venture into the dungeons were given a title to signify their status, with the most skilled among them earning the title of Dungeon Scout. Our hero, Vincent Schwartz, was a young orphan found inside one such dungeon. He was adopted by the dungeon knights who found him, and for eighteen years, Raised among the very creatures that were his born enemies. However, thanks to the love from his adoptive mother, Verda, he became an ordinary elf-like boy filled with love and passion for humanity and his peers. On his 18th birthday, when the world's children could ingest a special fluid and awaken, he was scared of remaining weak and useless; however, at the moment! A mysterious system known as The Demonic Choice System appeared out of nowhere and gave him random choices with different rewards throughout his life. Vincent made his first choice, able to gain a powerful but strange Summoner class. With this power, he could summon beings from distant lands, wielding unlimited power and the ability to perform devastating attacks. Will Vincent's newfound abilities help him attain the life of his dreams, filled with love and adoration from the beautiful monster girls he encounters? Or will he be forced to fight and battle against the shadowy purpose of the dungeons themselves as the world's secrets and darkness begin to unfold before him? Only time will tell in this epic, romantic harem novel of adventure and intrigue.

Devastated by the harsh truth of being unable to summon a monster in a world full of summoners. Ban trained himself to death in the bid to overturn his fate. As he was training himself to death, death really came to claim his life. At that moment, a sudden light pierced the darkness that envelopes him as a virtual screen materialized in front of his eyes. With a stroke of luck, Ban somehow managed to inherit a System after being denied by its previous owner. And his first mission was to tame an ant or else, die again? Witness as this young man collects and contracts different kinds of monsters with the help of the Almighty Summoner System, becoming the Supreme of the Summoner's World and the worlds beyond it.

Imagine being forced to live, after death, as incorporeal bodies trapped in a vast space of nothingness for thousands of years, with nothing to do but exchanging past memories with other cohabitants (read: weirdos). Everybody wanted out, but there was no way to leave the Void... Until one day, a young man was finally summoned, as a powerful but reluctant mentor, by a bubbly and motivated but completely naive young girl. Baiyi, finally out of the Void, was the only one who could save all of the other 32 souls from their prison and his summoner might just be The Key to their freedom. However, Baiyi had to use the techniques and abilities the other souls had taught him throughout the years, and together with his own extensive knowledge of anime and game tropes from his shady and dangerous past as an otaku, to face the biggest challenge of them all: training the clumsy young girl he was forced to partner up with… into a competent sorcerer!