Yeah, they're friends now. Rachel is even friends with Ragan. And if you remember, they had much more toxic confrontations lol
Janelle has spoken very positively about Rachel too in the past and they've likely already met too. That's why I think they'll probably work together on the Race.
I could see an alliance between Rachel & Elissa/Janelle & Britney/Leo & Jamal/Tyler & Korey. Maybe even Art & JJ. lol Rachel shared some happy hugs with Leo & Jamal and Tyler & Korey in the livestream. As for drama, I could see Rachel clashing with Eliza & Corinne.
Which reminds me, Janelle and Rachel are two of the best BB houseguests when it comes to winning competitions. I remember seeing their comp wins and they had similar numbers of HOH and Veto wins I think. So it's kinda cool seeing them finally competing against each other, not on BB, but on TAR!