Not going to lie, I like obscure AR shit from normal media.
One trope I've noticed is AR accomplished via some sort of body swapping. It tends to be pretty rare given how weird and discomfiting it is, even by AR standards, but even this can slip its way into some normie works.
One example would be Tekumel, a science-fiction/fantasy setting that M.A.R. Barker made, originally off of the coattails of D&D, though it eventually became its own thing. In it, one of the rarer spells that the priests of Belkhanu have is known as Re-Embodiment, and allows the implantation of a soul into a mindless body. This usually involves the Rite of the Avulsion of the Spirit-Soul, which is pretty fucked (its mentioned that the temple doesn't even like to offer it, and pretty obviously to us even once is messed up). This involves severing a soul from the body and automatically casting it into the "Unending Gray", basically a limbo. From there on a new one can be implanted. The text actually mentions that the spirits of newborns are more easily dislocated, and that you thus don't need the Rite of the Avulsion of the Spirit-Soul in order to use Re-Embodiment on them. As a small consolation, the text never says that this "natural" dislodgement sends them to the Unending Gray.
Another one is from the novel, "The Several Minds," by Dan Morgan. The plot is honestly tl;dr (I only found this from a book that overviewed other ones), but at one point the protagonist, a telepath, is fighting for mental control of an enemy. For some reason during this a baby of some random couple dies due to a brain embolism and the protag decides to transfer his consciousness into the body, repairing the brain sufficiently for survival in the process. Then the enemy tries to hold him hostage to discover how to become immortal through transfer, but he's able to be killed. The overview didn't really give the context or motive for this and I honestly just mentioned it due to the sheer surreality of finding this mentioned in normal reading.
Both of the examples are obviously quite disconnected from traditional "fandom" AR aesthetics, which is sort of what made them notable enough to mention.