Here is a list of useful REPL-related resources by the Clojure community:
The Ultimate Guide to Clojure REPLs on Lambda Island: this tutorial notably explores the wide variety of Clojure REPLs and related technology.
Stuart Halloway on REPL Driven Development: a talk which reflects on the added value of REPLs compared to shells, and provides guidelines for using the Clojure REPL.
Share the nitty-gritty details of your Clojure workflow: a ClojureVerse discussion where community members describe their development configurations and how they use it them in details.
What makes a good REPL?: this blog post provides a general reflection on the benefits of REPLs, and the programming language features which enable them.
REPL-Based Development Demo: a video showing how the REPL is used for development on an example project.
The Seesaw REPL Tutorial teaches you to build Graphical User Interfaces at the Clojure REPL.