Have you considered buying from stores that normally target commercial businesses? They generally have a lot more slack right now with restaurants not running. The minimum order size is kind of high, but if you buy non-perishables it might be good? https://www.webstaurantstore.com is what I've used.
When I was in San Jose, there was a "Cash and Carry" foodservice store where one could just walk in and browse the food (I once randomly met the properietor of Psycho Donuts there, looking for new flavor ideas.) It appears to be operating under a slightly different brand now, but seems to be open the the public still?
