Well, first of all this is in the wrong section. A thread like this without any actual story in it would go into the Writer's Lounge subsection.
Secondly, you might want to be more specific as to what you're willing to write. For instance, you might say that you aren't willing to write original characters, anything involving Black/White, and so on. Otherwise, people will hit you with a whole bunch of requests that you might not be really willing (or ready) to write.
Third of all, it's hard to fill requests that you don't have much control over. Someone might request something that you just don't even feel like writing because it's not really something you care about. So the writing that you'll do (if you decide to fill the prompt) will feel forced and probably won't be your best work.
If you feel like writing something, brainstorm. Think about what interests you in the Pokemon world, what you want to explore more through fanfiction. When you get the basis of an idea, work with it. Write it out, and it'll feel better as a story because it's something that you had an interest in. You can check out the first two posts of the
Plot Bunny thread to help you getting started.
Still, if you want to fill requests, rethink the way that you started. Post some guidelines of what you feel comfortable writing about, and that'll work better than something completely open to a wide wide fandom.
