Preflop and flop are standard.
Checking the turn seems natural, since we'd like to get to a cheap river, but I think we get into some tough situations on these effective stack depths. That's what happened in the actual hand.
Check-calling a large bet is awkward and we don't have much fold equity to check-jam. So, any line where we check, we're forced to take a passive line and have to hit our hand on the river.
I kind of like a small lead on the turn to serve as a block bet and hopefully get a cheap river, maybe 1/4th pot. But, again, getting jammed on is really gross and puts us in a super awkward spot. Also, if we don't get jammed on, we'll likely be called, so we will need to hit the river in some way to win usually. Some players can also read through this small bet as a "blocker" bet and that could encourage them to call us down light or raise, etc. Anything we do here is pretty tough.
In the end, I like jamming the turn. The antes are high, so the pot is already big in this 5 way pot. There should be 25,600 in the pot on the turn, so we would be effectively jamming 35k-ish into 25,600 (not massively overbetting). Most of the players left to act would have likely bet the flop with their stronger hands and if the SB was trapping this type of flop, he likely would have led the turn. So, I think it's likely no one has better than one pair at best here. The times we do run into a hand, we have decent equity. Also, sometimes someone will call off with worse draws and we could actually be ahead.
The overbet may look like a semi-bluff, but live players could easily second guess themselves vs. what is perceived to be a tight UTG female player (no offense to OP, but I think females would get more credit in this spot by any male opponents, esp. if they are perceived as a tight/aggressive/solid player). Use this to your advantage OP
My semibluff turn jams would include Adxd (I open A2s-AKs preflop), all of my suited diamond broadways, and maybe some other diamond combos. My value turn jams would be 99+. I would check 99+ on this connected low flop 5 way OOP anyway (either to check-jam, check-call or check fold depending on my exact hand and the action), so I think these work as good value overbets on the turn. Esp. after everyone checks through the flop and after SB checks to us on the turn. Thoughts?