Live 15/30 KK

[Stuck]

UTG who seems a reasonably solid player open raises. I 3-bet in middle position. Two cold callers (one is an autobetting fish, other is decent) and both blinds call (both loose players) and we take the flop six handed. Table is loose, but my raises have been getting some respect, so this is not typical.

Flop: J 8 x (rainbow)

UTG bets, I raise, everyone calls.

Turn is a blank. Checked to me I bet, everyone calls, UTG raises. My play?