I am now 80 years of age and have investigated a few communities into which I can move when I am no longer able to live completely independently. Although I have made no decision yet since the only family I have live in Maryland I would likely end up here where two of my aunts and an uncle reportedly happily spent their last years. One aunt lived there 12 years. At least one cousin is on their waiting list. Erickson operates communities elsewhere as well.
Charlestown | Senior Living
Touchmark is a good outfit that operates several communities "up north". I do not know where the OP's adult children live but most older folks want to be near family if possible. I have friends at this one in the Boise, Idaho area as they have an adult son living nearby.
Meridian, ID Senior Living | Touchmark at Meadow Lake Village
My other choice would be here as my son's in-laws all live in the San Diego area.
Independent Senior Living & Retirement Community in Carlsbad, CA
All of these communities are able to provide different levels of care. Say one is pretty independent but needs a knee replacement which requires recovery time and attention. They can provide it.