The main character of 'Mythical Realm' is definitely OP. They have unique powers and talents that give them a significant advantage throughout the manga. However, whether this makes the story more or less enjoyable depends on your personal preferences.
You might like 'Supreme Legacy'. Here, the main character is OP due to a special inheritance or a hidden power that emerges, making them nearly unbeatable.
There are various types. Sometimes it's a sci-fi light novel where the MC has advanced technology or superhuman abilities. Another could be a cultivation-based one where the MC rapidly gains immense power through training and rare encounters.
One popular one is 'Sword Art Online'. The main character Kirito is extremely overpowered in the virtual world of Aincrad. He has incredible sword skills and can adapt quickly to various challenges.
One such light novel could be 'The Kingdom Builder's Ascension'. In this story, the OP main character uses their unique skills and strategies to establish a mighty kingdom.
I'd recommend 'Divine Might Chronicles'. Here, the main character is born with god-like abilities and dominates from the get-go. The plot mainly focuses on how they use these powers to face various challenges.
I'd recommend 'The Supreme Hero's Conquest'. The MC is incredibly powerful and has his romantic encounters. The story is exciting and keeps you hooked.
Well, 'The Rising of the Shield Hero' is a top - notch isekai novel. The story of Naofumi, who was wronged and had to fight his way up from the bottom in the isekai world, is both inspiring and full of drama. 'Log Horizon' is another good one. It focuses on the economic and social aspects of the isekai world more deeply than some others. Also, 'Grimgar of Fantasy and Ash' is worth mentioning. The more realistic and gritty portrayal of the characters' struggles in the isekai world sets it apart from some of the more light - hearted isekai novels.