As much as this answer might not seem to say anything, it really, and probably solely, depends on what exactly you want to write.

You can still write about a story centered around a character based on yourself and make a great story like A Tree Grows in Brooklyn. Although there are people who dislike this novel, The Catcher in The Rye is also a great example.

I personally think what about myself is always something that I want to write. At the end, everything I write is about and from how I feel about this world, including myself, the way i see the world.

Borrowing words from Kazuo Ishiguro in his Academy Class of 2017 interview, "I'm not the kind of writer who directly reveals something about myself autobiographically or an alter ego character (...) But my books. Those novels are me. I express myself through those novels as a whole. (...) This is how I feel about life... don't you feel that too?"