There's quite a few people who are good climbers out there who are out of contract, but quite a lot of them, like Magnaldi or Chabbey, are kind of unlikely too. Mikayla Harvey is a reclamation project at best now, and I assume they're after somebody at least semi-proven so precluding a lot of the Avenir types, although somebody like Eline Jansen would fit with their profile, and she is on VolkerWessels who they've raided before. While buying some people out of contract from smaller teams does seem like a viable route, they also seem like an odd team to go to for many of the prime climbing candidates for that, like a Marion Bunel or a Julie Bego. Thalita de Jong might work since she can be deployed however they see fit, but I'm not sure she fits the profile of what they're looking for and she seems happier riding in the smaller teams than she did back when she was fighting for space at the old Rabobank team with Vos, van der Breggen and Ferrand-Prévot.
Monica Trinca Colonel and Nadia Gontova are a couple of riders I had earmarked as earning a better spot, MTC is in her first year of cycling and has been impressive, while Gontova has earned a shot at Europe if she's willing to relocate for it. I did suspect that Movistar might have been her most logical landing spot, with her having a lot of her results in Latin America and them already having a Canadian climber on the books in Olivia Baril, but I'm not sure how much roster space they would have for her.