Klong shines there:

https://www.t3x.org/klong/

Quick ref:

https://www.t3x.org/klong/klong-qref.txt.html

Intro:

https://www.t3x.org/klong/klong-intro.txt.html

Klong for K users:

https://www.t3x.org/klong/klong-vs-k.txt.html