JJ overpair until river

I think Pre flop you should have 3b JJ to avoid playing multi-way action and also you are OOP in the sb, also do you have much history playing with any of the opponents? I think the flop and turn are standard calls you could look at x/r flop . OTR i think folding here is fine as you have to ask yourself what do you beat cause even busted flush draws Kx now have Top pair..

a clear 3bet pre, no? csm81 mentioned, we want to isolate AND we're OOP - meaning: showing strength is going to help us going forward in the pot. Also, if we're flatting JJ's multiway, what ARE we 3betting in sb? KK's and better? if so, we become very easy to read, no?

OTF, tbh, even donking b4 c/c imo, this IS a draw heavy board... opinions? NOW, IF WE DO DONK... and get 1 call... what to do on the turn with that 9.
we do pick up a straight draw, but lots of two pair hands are now possible and QJ will have the nuts. do we then c/c here? or c/r? or even b/shuv as a semi-bluff? b/c is probably ruled out. With no reads, perhaps I would mostly opt to c/c for pot control and c/f on that K river, thoughts?

AS PLAYED: turn call seems fine: we have SDV and Implied odds with the draw, but many scary cards can hit river: any spade, any broadway really... makes two pairs and straights viable, even J's aren't nice.

OTR: without reads, fold seems better than call to me. had betsizing been toward half pot, then I would def lean towards call I think.
FUN QUESTION: what do we do if the board pairs with a 9,8,or 10 otr? I suppose we are happier to see them than a K? Are we still folding to $1.75? what about $1?

For the 3 bet, with the original raise coming from UTG i was thinking of a strong range to start with, made even stronger if called by the fact that there would still be a person to act behind them, so didn't want to end up only against a range that had me beat. However i'll take it on board that better to avoid multi way.

If the river was 8,9,T i think i would have called the $1.75

I would just SQZ pre flop to make my decisions easier.
As played I think OTT You need to call