Here's a list you can go off of. Btw, if you really wanna get good you should try everything and anything under the sun. If it has a drum beat, you can break/pop to it.
For bboying:
Beatnuts - Watch Out Now
Dilated People - anything really, very well rounded hip hop songs
Drunken Tiger - Foundation
Gangstarr - most of his songs'll do just fine
Gloria Estefan - Conga (they used it in redbull bcone)
Kero One - you can find a couple
Krs One - all his music
Kool Moe Dee - anything
Mc Lyte - Lyte as a Rock (one of my all time favs to break to)
Onyx - Slam
Sugar Hill Gang (jump on it)
The Roots - 100% Dundee
For Popping:
Afrika Bambaataa - anything and everything he creates
Black Moon - Buck Em Down
Daft Punk - anything they make
Micheal Jackson - pretty much anything
White Stripes - Seven Nation Army
Obviously there're a lot more great songs but I haven't danced in a while. Sadly i forgot everything but my footwork. Honestly thoguh, if i has a beat, you can dance to it. If it's heavy on bass then you can pop, if it's drum heavy you can break. And practice uprocking, it'll do wonders for your rhythm.