This is 20NL equivalent. Villain is Tight-ish reg, straightforward from what I've seen.

Hero is in HJ with QdJd. Villain is in CO. Effective stack size is 100BB.

Preflop, UTG limps and CO posts a live BB. I raise to 5BB, CO calls, everyone else folds.

Flop is 7c5c4s. It goes check/check.

Turn is Kd. I bet 6BB, CO calls.

River is 7d. I bet 17BB, CO calls.

CO wins with Kh8h.

How do you judge the play here?

Should I c-bet flop? I don't like a c-bet because I have no draws at all, not even any backdoor draws, and I don't have much of a range advantage, if any. Villain could have all the sets and all the two pairs and all the draws.

I think turn bet is reasonable because I have lots of AK, KQ, KJs in my range which will check flop, and the check/check on the flop means that he has a marginal hand. Perhaps bigger sizing is required?

After he calls the turn bet, should I bet river? I think I should either give up, or bet smaller on the river (maybe 40% pot). His range should be mostly busted draws, some small pairs, and a King. He's probably never folding a King, and a busted draw will not call any bet. Maybe Ace-high or small pair will find a hero call for a small bet, but I don't think it's likely.