Jon took some people out (anyone who participates here, which tentatively should at least be him, Daenerys, Lyanna, Sonya, Star Wars Rey, and Lady Maria) and would likely have been able to manage to capture at least a few, although some of their retrieved Hosts might be relatively injured upon their arrival at Hope's temple.

I don't know about the rest of them, but Jon would definitely be interested in the healing blessing, unless Hope has a better idea; he's thinking a lot about preparing for eventual final confrontations with the Null.