I think Pliskova has Svitolina in R1. I'd back Svitolina there as I don't recall Pliskova doing much at RG recently whereas Svitolina seems to maintain a fairly high level on clay. Having said that, I thought Svitolina would have done more this season but she seems to have dropped off since Wimbledon/USO of 2023.
Sloane will do extremely well to get past Putintseva as she lost to her a few weeks ago. Sloane at RG is not Sloane anywhere else, I think she will fight more to go deep here but players like Putintseva can just wear you out. R3 against Sabalenka is also on the cards and with Sabalenka's consistency nowadays at majors I only see that going one way, but I think Sloane put up a fight against her last RG at least. I don't see Stephens playing more than 2-3 more seasons maximum. I think she wants to go and enjoy life just like Muguruza has. Unless a US player is injured for the Olympics I don't see her qualifying to play the Olympics at RG which is a shame given she's actually a good clay courter.