Take a look here for some other tools:

https://github.com/skx/cpm-dist

I found the compiler collection here useful too:

https://github.com/davidly/cpm_compilers

Though I guess some of these things won't run under the linked emulator, because they use SUBMIT and require more than a single-executable to be run.

(That's the reason why my own emulator used the CCP/"shell" rather than just limiting itself to running FOO.COM)

We also have a new CP/M-86 emulator at https://github.com/johnsonjh/emu2-cpm86