pretty standard. Opener is a 18/13/4.2 reg. He goes to showdown pretty often and wins 49% at SD, however he cbets 54% OTF and his W$WSF is pretty low (40). BN is a nitfish /19/4/2.1 and bb i have no sample on but he has 100% VP so far and he is not fullstacked so i assume he's a fish too.

perfect flop obv. not a lot of draws and my hand crushes pretty much every range of every player. When Opener Cbets into a 4way pot his range is pretty obv: JJ+, QJ,KJ,AJ,JTs (he opens 15% from MP so this is pretty much it). BBs range should be wider, something like 56,68,58,A7,A4,Aj,Jx, maybe even 7x (which i block).

in this spot i think it is a nice spot to lead ~2/3 pot. Why do I think this? Well first of all i expect opener to call almost 100% here. His high WTSD shows that he is not very likely to fold toppair +. Next is i dont want to give BB freecards if he draws, and opener checks behind. X/r maybe looks to strong here on this kind of board texture and turns my cards face up. next thing is, i have only one potsize bet left and can jam the river. If no flush arrives (and no other draw like 56) i think villain will call almost 100% OTR. What do you think about donking in this spot?