Villain is a reg but I have no reads on him besides his preflop stats.

The situation seems pretty standard.
Villain should be potting this flop in a 3-bet pot so his play is standard.
My issue is whether and how I should continue.
Given that I block the Ace of spades and lots of weaker flush draws it means he likely has bare overpairs or a wrap.
In villains shoes, I find it standard to pot/fold if I don't have backup to my overpairs, but that's me.
I'm not sure villain is ever pot/folding.

In this case, should I just call and hope that villain check/folds to my turn shove?
I don't like raising since I have 50% equity maximum against his estimated range, so I'm never ahead.