Villain has been playing passively, cold calling quite widely preflop and generally passive postflop.

I thought his turn bet was quite suspicious, although i was prepared to fold if he puts in a raise on the river. Any thoughts on this line? Perhaps check the river down?

what was your reasoning for checking that flop?

I guess i wasn't comfortable with playing a big pot since there were so many callers and i'm utg

Would you have preferred cbetting the flop?

yes, cbet. you're gonna get people to call with no equity or flush draws. By the way, there is no better way to exponentially increase the pot then c/r (instead of putting in 10 big blinds, you're now putting in 30 and bloating the turn pot, plus you've narrowed the range of hands that will call)

I usually 4X it from UTG with all my hands when the tables full of regs or nits and 5x 6x 8x it when theres fish and lose passive ppl at the table... raise bigger preflop to narrow opponents down and then bet the flop. I think c/c turn is good(after we bet the flop)... small bet at the end served as block bet for cheap showdown?

^ Raising more pre is ok, not 7X 8X though. 4X or 3X is fine.

Cbet on this flop, we get value from JX/flushdraws/straightdraws/some PPs.

OTT: Why do you check? We're potentially giving him a free card to draw. I still think we get value OTT from JX/draws/PPs. It's a bet/fold though. Villain will raise most of his premiums here.

OTR: I don't mind betting small, but i still think we can go bigger. Also, if we cbet OTF, we would have a good enough stacksize to be able to shove OTR. Now we've c/raised OTF and called a tiny bet OTT we're left with a bit of strange stacksize.

You said you aren't really comfortable playing a large pot, but then you decide to c/r anyway, it doesn't really make sense. You should always be cbetting this flop, your mostly still way ahead, and the board is quite wet so just pot it imo, CO will call with any piece.

I bet turn, but as played his bet is a bit weird, i think flatting is fine.

I c/f river

at nl2 only fish and lose passive player will call with broadways and pocket pairs your regs and nits will fold

bet/fold all streets. Versus a passive player you lose a lot of value when you check on any street. obviously any raise and you're mostly in trouble.

C-bet the flop. If you check call the turn whats the point of the small bet on the river? you took a weird line. I would have c-bet the flop and probably taken another shot on the turn and evaluate from there.

This. What are you trying to represent on the flop when you check raise, yet you mention you did not want to play a big pot. You get one person to fold before you check/raise so this line makes zero sense.