Some stay at home - "AgingInPlace"
CCRC - Continuing Care Retirement Community - Entering one is usually a once-in-a-lifetime choice and that's the appeal. Many have large campuses that include separate housing for those who live very independently, assisted living facilities that offer more support, and nursing homes for those needing skilled nursing care.
ILF - Independent Living Facility - typically six to seven years younger than residents of other elderly housing and are more healthy. Therefore, few support services are offered at ILFs other than building management and security. Thus, monthly rates are lower than ALFs. Sometimes not even staffed 24/7.
Or Eden Alternative.