My list for you:
Mobile Suit Gundam: Iron Blooded Orphans
Kill La Kill
Akame Ga Kill
Durarara/Durarara X2 (Both one anime, funimation has all 60 under Durarara)
Highschool DxD (Crap tons of fanservice/ecchi. It gets annoying but the real plot is cool)
Id watch Assassination Classroom then move onto Durarara. Just as a note, Durarara has a lot going on, and I mean a lot. Watch the first 24 episodes, or at least the first 12 to 16. You'll get hooked on it, its well written and made. Highschool DxD is pretty midless, but can get be good at times. Kill La Kill is Trigger, so its good. Akame Ga Kill is good, goes pretty fast. Both Gundams are your typical Gundam animes, fighting robots with a plot that has a meaning at the end of it.