Good luck. Just went thru something similar with in-laws, one of which has dementia. Took over a year to get them looking around seriously and then to decide to accept what could only be described as a godsend. Then almost another year to actually make the move happen. Now have to listen to "if the house doesn't sell, we'll have to move back."
I mention all that under the category "coming attractions."
Yes, there are warehouses. And there are some nice places. If you are anywhere near MD, go to Sykesville and look at
Fairhaven. Or any EMA facility. Yes, I understand that getting her to look is the problem.
YOU go look. I've visited many of these places, and they tend to have very understanding people. You can talk with their marketing person on the phone, and maybe make an appointment to see them to talk and visit the facility. They face this problem every day, and can help you with getting her to visit.
One way they do this is to issue an invitation to a meal, or some function at the facility, or both. There may be residents at the facility that have some common interest with her, and a willingness to befriend her to help her adjust to the idea. The plan is to make it appealing to her, and get her to see what such a place offers. Once she moves in, her social life will almost certainly blossom, and there will be many activities, at least some of which would interest her, all within walking distance. No driving required. The convenience of having so much, and so many friends, readily available, is a major draw. Plus, the availability of varying degrees of medical care. And these places have full time security. Don't consider one that doesn't.
You probably want to look only at CCRCs. Continuing Care Retirement Communities. Google it. You'll want to avoid Sunrise facilities- for reasons why, just Google them, too. They've been in the news a lot, and not for good reasons.
I see, as I type slowly, that bhelms has already posted pretty much what I've written above. Take his advice, it's damn good.