Backup Drive: You must back up your data.
Lenovo Desktop: Decent computer with a quad-core processor.
Square: Simple and inexpensive credit card processing.
Splashtop: I use this excellent service for remote access.
Google Workspace: Rock-solid email hosting, aka Google Apps aka G-Suite.
Dropbox: Excellent cloud-based storage.
Dreamhost: Good and reasonably priced web hosting.
Private Internet Access: Use a VPN for security and privacy, especially on public wifi.