Family is working to keep Dad at home, at least until Covid is no longer issue. He has some signs of dementia although he manages most things himself; we clean and shop. Biggest issue is boredom and loneliness. Short visits by others throughout week would help and relieve our worry, we just don't know how to make it happen.
You can call a service like Home Instead & pay for someone to come care for or sit with your father for 4 hours at a pop as often as you'd like. They would also do light housekeeping and other things your father needed. I used to work for HI years ago and had a few clients I'd care for and a couple that I would watch Wheel of Fortune & Jeopardy with after I cooked dinner for them in the evenings.