Without reads, I would freeze and bet river if checked to.
Raising turn prob not great bc he’s never breaking worse against a BTn open 2:2
at.
The only case for breaking your 9 that I can think of is that BB 3! D1 is usually a strong D1 and not usually like 3569x 4569x 4568x, but that speculation is partially nullified by the fact you opened BTn 3 handed and will have a lot of D2 like you have here. So I’m prob not breaking and if he bets river after we freeze, id call and expect to lose