I know I am interested in writing but how do you experiment and discover to find out the best writing genre for yourself?
I must admit still searching. At the moment I go with whats in my head and see where that takes me.
I think you start with what you're most excited about writing. Hell, you might not even know what genre your WIP is when you start.
But after you've written a lot, it's hardly inconceivable that you'll see you do far better in one genre than another. Or that your readers LOVE your work in one genre vs another.
But I'm guessing if you're asking the question, you're in the stage where you shouldn't worry about it so much as what excites you.
I agree with Thuggish. I write stories and am not really curious about which genre my style falls into. To be honest I'd rather not constrict myself to any particular genre. Sometimes I'm interested in what genre a particular finished piece would fall into but that's as close as I care to define it (my go-to is usually "literary" as this seems to be a very broad genre).
Also, once you've established a style I think specifically writing stories in different genres could be a fun challenge (Bizzaro sounds cool...)