Some of the lisp installations are
1)sbcl — very widely used and has a good support
2)cmucl — an ancestor of sbcl with lesser active lisp developers than sbcl
3)dr scheme — An implementation of scheme, another branch of lisp.
4)emacs lisp — a derivative of lisp that was used to build emacs.
Emacs is a very popular editor. If you have emacs you can invoke emacslisp by opening the emacs editor and typing in M+x ielm.