Well, I assume you're doing extract?
Not sure how comfortable you are with the brewing process yet and you only said one thing that you've brewed.
Also not sure what you like but I'll throw some things out there.
See if they have a black butte porter clone. My favorite to have on tap.
Maybe an IPA?
Have you thought about a honey brew?
You might check some of the sites that post recipes and search for key words that interest you.
There's this site. Then there's Beersmith's site, http://www.beersmithrecipes.com/
You might need to sign up to do a search on beersmith, but it doesn't cost anything ( unless it's because I bought the software ).
There are a ton of recipe sites. Search for what interests you.
What I love might not sound interesting to you.
When you look over sites that post recipes, check them out. Some of them have mostly recipes that people post, but they've never tried yet! Just an idea mostly.