What the HECK did my opponents have?

The Hand

I had Jd3d and decided to play it aggressively. I figured most of my opponents do not have much 5x in their range here, and a 2x overbet on the flop would make it hard for them to continue. If I did get a caller, I had my diamond outs and backdoor straight outs, and could win a big pot.

Well, they BOTH called…

Then we ALL checked the turn…

Then they both SNAP FOLDED to a pot-sized bet on the river.

I guess straight and flush draws? A nonbelieving 6 that gives up at the end facing further aggression? I honestly have no idea what to put the villains on here. Love to here what some of y’all think…

and yes I know how bad it is to open J3s from UTG+1 lol don’t @ me!