Singing in a group is likely to be some way of yet but there are lots of different on-line/Zoom/Youtube based virtual choirs to consider to fill that void.
This one was emailed to me today.
I've no idea if it is good/bad/indifferent but some of you may be interested as they're doing a medley from "Les Miserables" in August.
Further info is available from https://www.virtualmusicteaching.com/virtual-choir
Alos, this Friday (24th July, 5pm) they're doing Vivaldi's "Domine Fili unigenite" then next Friday (31st July, 5pm) it's Handels' Hallelujah Chorus.
If anyone has tried any other online choirs and wants to send suggestions/give feedback that would be great :)