Last couple of days some 50/100 and 100/200PLO games started popping up so I decided to take a shot (usually play up to 25/50 and occassional 50/100). I started the game with 10K and built up to 27K.
Button is Jinx, SB is very very LAGtard who also plays up to 200/400NL, BB is solid from what I've seen so far.

I'm in CO and open to 700 with K Q J 9

Button calls, SB calls, BB pots, we all call. I'm 90% certain that BB has AAxx here. He has a little less than potbet left. Earlier I saw him reraise preflop and checkfold a J 8 7r flop with 70% of his stack left.

Flop is Q 8 3 with 2 hearts. SB checks, BB predictable shoves for lil'less than pot. I ..... ??? I have over 100BB left and a good thinking player and someone who loves to put the money in act behind me.

I guess calling isn't an option but not 100% certain that shoving is great with the hearts out there (SB won't fold a decent FD with his stack 60BB and BB is the only one who has me covered).

Any advice welcome (even flaming )

When you're in a spot that depends 100% on stack sizes, it helps to make the stack sizes somewhat remotely clear.

Before flop:

SB 45K
BB 13K(ish)
Hero 27K
button 16K

You have to get this in, given them stack sizes I dont think its close either.

unless my math is wrong, thers 11200 in the pot going into the flop, and he shoves for 10k~ otf. U are 50/50 against a random AAxx and 30/70 dog if he has AA w/ the fd. u go into the flop w/ 24k~, and only the SB covers. Id iso shove with the $ out there & dont think its really close. the only disaster is if sb has a set or kk with hearts hand.

I fold. Your outs pretty bad if AA has the FD or someone else calls. Also, it makes a lot of sense for him to 3 bet AKQJ type stuff that your not all that great against.

snapshove not close at all.. your like 50/50 or slightly worse vs BB range and the dead money is more than enough to make up for the few% of times you get it in almost dead multiway.

Snap shove with info given.

That said, there are villains out there who would not shove here (4 way pot on draw heavy board) without a FD to go with his obvious AA.

If the stacks behind are deeper (~4-6k depending on profiles and whether we got BDFD) the decision gets a lot closer, I probably end up folding.