I would raise the flop. I typically dont like to slowplay out of position, because you risk the turn getting checked through, and now suddenly you are grasping to make up for lost value on the river.
As played I would just call the turn. You need to be more worried about UTG here than SB, because UTG has you covered, and unlike SB he can absolutely have all the full houses including AA and JJ.
And when you check-jam on the paired board, UTG is basically only going to call you, when he has a full house. So you bone yourself, when you are way behind drawing to a royal flush, and you win nothing extra, when you are way ahead.
You could argue, that he will also call you with a flush, but he essentially never has that, when 4 of the big flush cards are spoken for. Hands like Q9s or 98s are a very loose open UTG, and if he has them anyway, he is probably going to bet the river, so just let him continue to value own himself.
If he overbet jam the river, you can find a fold here and get away without losing your entire stack, when you are beat. If he bet something more reasonable like half pot, you call again.
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