About 1 month ago, I published tldx, which is a tool I've been using for the last year and a half to help find new domains for my projects.

tldx helps you brainstorm and check domain name availability by combining keywords with smart prefixes, suffixes, and TLDs. It supports filters, presets, and multiple output formats.

If you want to give it a try, it is available here:
https://github.com/brandonyoungdev/tldx

Hopefully, some of you CLI enthusiasts can find it useful! Just don't buy too many domains ;)