Bet 3,30 and get it in if he raises.

When we bet we have folding equity, and against his shove range we have decent equity. SPR is 2 so there isn't a lot of room to make any fancy moves.

Other option is to check, and then opponent can decide if he wants to take a free card or bet. The thing is that if our plan is to c-raise, we hope that opponent bets. His betting range is probably stronger than his raise range (because of the SPR and the fact that hero is 3bettor) so I don't like c-raise plan on this board. We should use c-raise on boards that doesn't hit our 3bet range that well (where we might check our whole range). If we check-call, then playing the turn becomes tricky. If flop goes check-check, then most of the times we have to play turn and river oop which reduces the value if we improve.

If opponent stacks off with any flush draw, any pair, overpair or better, or wrap, bet&stackoff EV is +8bb.

Some options depending on opponent is to bet just pot or bet smallish, like 1/3 pot to induce a looser raise.

I like cbet/GII. SPR is low enough to where you don't need to over complicate the line and you often are doing quite well against his shoving range to the point where sometimes you are slightly better than flipping. Remaining stack sizes are very important here as your opponents raising range in this type of game with more money behind will likely narrow a good bit to where he has combos like two pair+, nut FD's, wraps+pairs/hearts, and other higher equity combo draws instead of stuff like maybe just Q+, any FD, OESD's and pair+gutter hands in the lower SPR scenario. It's more of a judgement call based on reads on the player and/or player pool, but generally I think when you start getting above an SPR of 4, especially the closer you get to SPR's of say 7+, the more likely you are to not realize your equity in the most profitable manner by starting with a cbet. Turns will mostly be bad for you and tough to play if he raises your cbet in that hypothetical spot. I would start to consider x/c if you think that ends up being the case as you have a hand that wants to not GII now, but has too much equity to fold and can play pretty well on a decent amount of turns in that scenario.