I have also been playing piano for a while and I know nearly all of the Stevie piano songs and a lot of FM songs. I either teach myself by ear or search them on YouTube. Youtube is actually very helpful it has a lot a songs like...
~ Little Lies
~ EO17
~ Seven Wonders
~ Stand Back (I think)
~ Songbird
~ Landslide (bajillions to choose from!)
~ Everywhere
I'm sure theres more but you should check it out, I don't really use YouTube anymore I mainly learn by ear now so theres probably tonnes more!