Personaly i found abcl a bad experience.
Thoughts on ecl & clisp ?
sbcl works nice & fine. But i’t’s the only lisp implementation i know.
There are good books on racket-scheme & chez-cheme.
The only book i know for lisp is, “Common lisp , a gentle introduction to symbolic computing”.
CMUCL is also way behind it platform support. CMUCL is mostly limited to being a 32bit application (IIRC). SBCL OTOH supports various 64bit platforms, incl. ARM64 on Linux and macOS.