If you're in the UK there are lots of Mutual Aid societies that have set up to help neighbours who are self isolating. You can see the directory here - https://covidmutualaid.org/
I'm in one of these in Shacklewell and it's great to see people helping each other on small scale with shopping, prescriptions and friendly phone calls and chats.
It's interesting that most of them are using WhatsApp or Facebook groups. They're not really tools that are suited to this kind of thing but they're the easiest and most available thing we've got.
https://www.denofgeek.com/tv/the-new-york-times-just-invente...