Basic premise: Main character's (MC) body gets destroyed, "soul" transfers into the first responder (Ally) trying to save him. MC gains mind powers.
What is the best place to find a body, to transfer to, given that the body has to work, at least insofar all the organs, but the brain are concerned.
There is a difference in-universe between brain dead and comatose, so if there are separate ideal locations for them, an answer for both would be nice.
Things to consider/Additional challenges: Ally is a former Marine, but more importantly, a EMT, so would have some access to patients in a hospital, I assume. Ally is, a ally. MC doesn't force her to do anything (she actually acts as his moral compass, of sorts) A surplus of time to "search" the potential bodies for a "soul", given that both MC and Ally didn't think mind control and souls were real, and have to acclimate.
Also, assume this happens in present day USA