Here's your turn airball. Can someone try to suck less at putting him on a range? It's kind of important.

Once you figure out what he could have and weight it, what's our best play?

$1/$2 No Limit Holdem
PokerStars
6 players
Converted at weaktight.com

Stacks:
UTG ($457.55)
UTG+1 ($145.50)
CO ($129.15)
BTN ($146.00)
Hero ($201.65)
BB ($306.05)

Pre-flop: ($3, 6 players) Hero is SB
3 folds, BTN raises to $6, Hero raises to $20, 1 fold, BTN calls $14

Flop: ($42, 2 players)
Hero bets $30, BTN calls $30

Turn: ($102, 2 players)
Hero ???