I am sorry to hear that Alan.
Have a look at charityjob.co.uk. Age UK are often looking for volunteers too.
There's some info here too https://www.haringey.gov.uk/jobs-and-training/training-and-apprenti...
I've added your thread to the Volunteering category. if you click on that (just beneath the title), you may find some relevant posts and/or places to contact.
A lot of charity shops are going to struggle to reopen as many of their volunteers are retired and many of those may be shielding. It’s worth having a look at the websites for places like Marie Curie, Oxfam, RSPCA etc.
Hi Haringey circle are looking for volunteers.