Hey Guys,

so I came across a hand which I thought was somewhat standard tlill the river.After a quick analysis I realized, that I don't really know how to exactly construct a theoretically "optimal" range.

Preflop: BU minraise-steals, SB 3bets to 8bb (15% Range), BU calls ( ~13-14% Range so all suited aces, suited broadways, some SCs+some 1gappers, all PPs up to 99...it doesn't really matter THAT much due to the postflopaction.)

SB barrels Flop+Turn, BU calls

The Board is

Now my question is:

We are pretty much only betting flushes on the river for value I believe?!That should make a total of 13-15 combos, which menas we can have around 4-5 bluffcombos.What hands are good bluffinghands?

How should/can we construct our turnbarrel range, so that we can defend 60% of our check-range on the river?
Obvious valuebets OTT with JJ/KK/AA and even QQ are not clear valuebets on that river and our FDs on the turn have improved to the nuts most likely.
So if we bet any diamond FD + the backdoorflushdraws (without a pair) with JT+/AXcc(+GS/str8 draw)OTF and OTT we end up with a weird range composition on the river.

We have to giveup alot of busted clubdraws and x/c hands like JdJx/Td/Tx/AdAx/KdKx even QQ/88 in order to not allow our opponent autoprofit when we check the river, but it is still not enough (we end up check/folding >50%) .
Should we really be calling all AA/KK hands here (what about AcQc,KcQc)?
Should we put flushes in our check/call rang OTR or should we bluff even less with clubs OTT, so that our whole checking range isn't that big OTR?

looking forward to hear some oppinions