For me, I call the weakish turn bet here I think with no reads.
I think AJs/KQ/A10 could also be in his range.
He could also be playing a flush draw, stop & go style - which actually works very well, call flop then lead turn for 1/2 pot or less, it lets you see the last card cheaper if hero just calls (then if hero had bet turn 2/3) & it gives you fold equity as well.
Marginal though and river is tricky but at least you have pos.