It is still available afaik, I will see about the link shortly!
It’s listed with Office365 home/student but it’s quite neutered:
https://www.microsoft.com/en-ca/microsoft-365/compare-all-microsoft-365-products?&activetab=tab%3Aprimaryr1
I would not recommend a business license, as they are over a few hundred dollars each.
The other one is the Home&Business, which is hidden on the Microsoft Store:
https://www.microsoft.com/en-ca/microsoft-365/p/office-home-business-2019/cfq7ttc0k7cq?activetab=pivot%3Aoverviewtab