Some things like paper towels, soap and toilet paper Walmart and Target wont let you order online and have it shipped. It will say “Only available In Store Only”.
This mat change at some point but I do not know.
I’ve found that smaller stores where I don’t normally shop have some of those things like toilet paper and other paper products (napkins, paper towels, tissues) - like Dollar General or K-Mart. I rarely shop in them, but have been in them more in the past month than I’d been in the past three years. Small refrigerated/frozen sections, but plenty of canned food, snacks, toiletries, etc.. - with minimal numbers of shoppers.
It they’d ever get some stock online, maybe people would stop with the exposure of raiding the stores to find the shelves empty too.