It sort of depends on what you classify as ‘getting out of chicken keeping’. Are you getting out of keeping birds altogether? Are you okay with trading the chicken keeping time for the time to keep a different small animal?
If you’re open to having more/different birds, obviously another chicken would be good for her, but I’ve seen people keep lots of different birds together, provided they can eat the same sorts of things. I keep chickens and Guinea fowl together. I’ve seen people keep quail and hens together, provided the run is quail secure.
I would be a little worried keeping something small like Guinea pigs in with a hen but that’s only because I’ve never seen it done. I’ve seen them kept with budgies and pigeons, just not hens.