Another good option is one of the UHK (Ultimate Hacking Keyboard) keyboards — I've been using them for years now and I'm very happy with them. The huge customizability is a big plus for me, especially as I use multiple operating systems: the ability to quickly switch the keyboard to generate Linux-friendly sequences (for things such as moving windows or switching between workspaces) makes life much easier.

https://ultimatehackingkeyboard.com