Flop Top 2 pair

I would recommend to never ever cold call in the SB, especially not multiway. Furthermore, J7s is a pretty bad candidate, too.
3bet/squeeze or fold from the SB. If you play too many pots OOP and MW, rake will kill you on these stakes.

Really tough spot OTF. I would ask myself what value you beat after MP jams. 74s maybe, but that's it, isn't it? J4 not in their range, would AJ, KJ, QJ jam? I don't think they ever have QQ+ because that is rarely in their flatting range.
Next question, do they have bluffs here? and which ones? There are some nut flush draws available as well as some combo draws, and pair + draw.
But I think it is an underbluffed spot in general.

So I think value: JJ (1), 77 (1), 44 (3), AdJd (1) = 6
Bluffs: 5d6d, AdQd, AdTd, Ad9d, Ad8d, Ad6d, Ad4d, 9d8d, Td8d, Td9d

Board: J♠4♦7♦
Pos  Equity  Range
MP   54.92% { JJ,77,44,AdQd,AdJd,AdTd,Ad9d,Ad8d,Ad6d,Ad4d,Td9d,Td8d,9d8d,6d5d }
SB   45.08% { Jh7h }
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You have 45% equity, according to which it would be correct call, but I doubt that players find so many bluffs here.

J7s is heavily dominated, as you have experienced in this hand. Just fold preflop in SB.

As played MP calls and then just shoves allin after your reraise, which i highly doubt he would do that with maybe AJ here.

Mostly sets and flushdraws i can imagine he would do that.
The question is, can we still fold here on the flop if we think that he will only do that allin with sets and flushdraws,
and how often can he take that line with flushdraws.

Definitly a close one. Its NL 2 so you never know. Probably a close fold or a close call depending on villain as played.

"I didn't like his 3-bet shove OTF for obvious reasons but folding seems too tight in case he would go nuts with QQ+, AdJd type of hands. " I highly doubt he has that kind of hands because he would already raise against utg bet on the flop,
if he is going allin against you, it makes more sens for him to raise already against utg bet. Its possible he still has those hands but it becomes more unlikley

Agree with the others that fold preflop is best option. You might call sometimes to gamble against some drunk whale but most of the time you should fold.

Postflop is well played. Squeeze is the best play here. There is a flushdraw. You want to protect your hand and extract value. After his shove i call. I am never folding top two pairs here. It's NL2 and we can see plenty of weaker hands. Overpairs, Jx hands, flushdraws, weaker two pairs.

Thank you for sharing your insights everybody! I realise I put myself in a though spot and folding pre is the standard play. I still like to play these hands from time to time because of how disguised they are and can be very profitable but certainly not easy to play them correct.

I still like to play these hands from time to time because of how disguised they are

There is nothing wrong with that. But play them in position and make sure they connect with V's range so you get paid off when you hit.

If you call a hand like this pre-flop I don't think you can fold top 2 pair against a random villain on NL2.
Villain can over play draws and you block 2 sets.

Cheers,
SDK1987

What were villains stats?