Some social media platforms like Tumblr can also be a source. There are often posts about fanfics, and you can search for tags related to X - Men, Jean Grey, and the Phoenix. However, the organization might not be as good as on dedicated fanfic sites, but it's still worth a try.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of X - Men fanfics, including those focused on Jean Grey as the Phoenix. Just use the search function and type in relevant keywords.
Another place to look is FanFiction.net. There are many talented writers who contribute to the X - Men fandom there. You might need to sift through some stories, but you're likely to find some great Jean Grey Phoenix fanfics. Also, check out some X - Men related forums or communities where fans might share their favorite fanfics.
Another good place is FanFiction.net. There are many authors who write about these characters there. You might want to check the reviews and ratings of the stories to find the ones that are well - written. Some stories might focus on their relationship, while others could explore their individual powers within the storylines.
Fanfiction.net is also a good place to look. Just use the search bar and type in 'Peter Parker x Jean Grey'. However, the quality can vary, so read the reviews and summaries carefully. Some stories might be more to your taste than others.
I really liked 'A New Perspective'. In this fanfic, the OC brings a fresh outlook to the X - Men universe, especially in relation to Jean Grey. It has some really interesting plot twists and character developments. The way the author portrays the connection between the OC and Jean is both engaging and thought - provoking.
The X - Men universe itself is very popular. Fans love to delve deeper into the characters and their relationships. Jean Grey is a central figure, and her Phoenix form adds an extra layer of intrigue. Fanfics allow fans to explore different scenarios that the official comics or movies might not have covered, like alternate universes where the Phoenix's power is used in unique ways.
Another option is to check out Tumblr. There are many fanfic communities on Tumblr. You can search for 'Grey x Juvia fanfic' in the search bar. Sometimes, bloggers will post their own fanfics or recommend ones they've read. But again, Tumblr has its own content policies, so not all explicit or adult - themed fanfics may be available or easily found.
You can try fanfiction websites like Archive of Our Own (AO3). There are a large number of Attack on Titan fanfics there, including ones about Jean and Armin. Just use the search function and type in 'Jean x Armin' within the Attack on Titan fandom section.
One great 'X - Men Jean Grey X OC fanfic' is 'The Unlikely Bond'. It focuses on an OC with telepathic powers similar to Jean's. Their initial encounters are filled with mistrust but gradually develop into a deep friendship and something more. Another one is 'Jean Grey's New Ally' where the OC helps Jean deal with her inner demons and the challenges of being an X - Man.
First, know the X - Men universe well, especially Jean Grey's character. Research her powers, her relationships in the comics or movies. Then, create your OC. Give them a unique backstory, powers, and personality. Start with an interesting plot idea, like how the OC and Jean meet. It could be during a battle or at the X - Mansion. Write in a way that shows the development of their relationship over time.
A story where the OC is a mutant with the power to heal, similar to Jean Grey's telepathic and telekinetic powers. They meet Jean Grey when she is injured during a battle. The OC heals her and then they form a bond. They could go on to face a new villain together, with the OC learning to use their powers in combat from Jean.
Fanfiction.net might also be a good place. Just use the search function and type in 'Armin x Jean'. However, the quality can vary a lot, so you might need to skim through a few to find the really good ones. Sometimes, Tumblr can also have some great fanfiction recs or even short fanfics posted directly.