I use SBCL to build command line applications. Reasonable enough memory use and very fast startup times. I for a while used to use Gambit Scheme for this but decided I like Common Lisp better. We no longer need hardware Lisp machines for good performance. That said, for some applications Rust is clearly better.
I have so much experience with Common Lisp, starting around 1984 on my 1108 Lisp Machine. I have used various Scheme implementations a lot, but I just have more history and experience with Common Lisp. Both are great choices, and there are many high quality Schemes, plus Racket. Experiment, and then choose your own favorite Lisp.