Until Dorka returns Caroline looks like the best bet. Regardless Ayanna becomes the preferred backup for every player taken out except maybe Nika. That means substitutions are a managing minutes scenario. The first player sitting probably has to come out before they are tired. The second substitution has to wait until the first player benched is ready to go back in, and the third player out, might be gassed before they come out, because they have to wait for the second benched player to be rested enough to go back in for them etc.
A 6 player rotation is exceptionally restrictive and inefficient. One possibility is a 7 player rotation with Ines only coming in to give Nika a blow, and Ayanna coming in for the other 4. Still Ayanna would have to play the 5 if she subs for Aaliyah, would stay at the 4 for Aubrey, Aubrey would move to the 3 if for Caroline, and if for Lou, Caroline would move to the 2 and Aubrey to the 3.
Then an approach playing Amari and Ines at least some minutes in a rotation of 8, with Ayanna still plenty of minutes, is a thought as well. Maybe it is time to see what they can do. It's not like we have any good choices. Dorka coming back can't be soon enough.