As I’m single and able - my favorite thing is renting an apartment for a month somewhere far away. I spent a month and a half in Thailand this year which was dirt cheap compared to a local Airbnb, even with a 10 day quarantine. I was bored as many things were closed but incredibly refreshed by the end.

Airbnbs also work, having enough space to have a “cave” or study which is just yours to control access to also can work.

Not the GP, but what works for me is taking long, low-effort hikes around a small resort town in the mountains.