We have booked flight on one of Delta's covid tested flights for August. We were going to Italy in May in 2020 which I know would have been cooler but we decided to go anyway. Finding it a bit tricky to find accommodations for a group at the (almost) last minute.
I found this website online that has some nice larger apartments that aren't too badly priced. I wondered if anyone was familiar with Venice Apartments. They say they have been in business 20 years but of course you can say anything.
https://www.veniceapartment.com/
Or if you have other ideas of sites beyond airbnb or VRBO.