>>214186These are my favorites of the season so far:
3-gatsu
Bungou Stray Dogs
Drifters
Flip Flappers
Euphonium S2
JoJo: Diamond Isn't Breakable
Keijo!!!!!!!!
Nanbaka
Occultic;Nine
As for picking a single one from that bunch, I'd probably say Occultic;Nine. But that's mostly because I'm so entranced by its mystery. Check it out, see if you like it. Be aware that the first episode is incredibly heavy with dialogue and jumps around a lot. If you've watched Tatami Galaxy or Baccano!, think of the first episodes of those. It gets easier to comprehend as the episodes go on though, much like those two series.
I also agree with the first reply. Despite really disliking the first two episodes and the characters in Flip Flappers, the aesthetic appeal of the show is fantastic and the characters have sort of grown on me.
If you just want something really fun, check out Keijo. It's like an action shounen like Naruto, but where girls fight each other with their boobs and butts. Complete with secret and forbidden techniques. It's amazing.