Ciao April,
At the moment, the amount of travelers are greatly reduced, as well as many offering more private individual tours to limit contact between people and possible risks of spread of the virus. I think the only option you have, if you want to be with others, is to go the route of "group" tours, where you know the tours are offered specifically for groups. You might be the first to sign up, but by the time the tour comes around you might likely have others who have joined in. Take a look at these, offered through our affiliation with partner Viator:
https://tours-discovertuscany.partner.viator.com/Tuscany/d206-ttd