T'ona, Kornet, Wyatt, Maddie, Shaya, Otiz, Treece, and Kaylon (probably leaving a couple off) all seem very close. It seems clear they are really enjoying playing with each other and several have expressed how much they are looking forward to this season. I have not read or heard any negative comments from any players.
Some girls not mentioned are generally not as vocal but it doesn't mean they aren't close to the others.