For what purpose?

Displaying on autocomplete in an editor

Replacing these for something more interesting

I'd usually go to the Material Design icons or http://thenounproject.com ... but they're not coming up with anything awesome.

https://thenounproject.com/icon/macro-6290333/

https://pictogrammers.com/library/mdi/icon/function/

@U3Y18N0UC emacs company-mode completions show some icons (different for functions and vars in Clojure). I found this package that provides a more icon-y company frontend replacement (see screenshot). Not sure if it does anything Clojure-specific: https://github.com/sebastiencs/company-box Differences with the built-in front-end: • Differents colors for differents backends. • Icons associated to functions/variables/.. and their backends • Display candidate's documentation (support quickhelp-string) • Not limited by the current window size, buffer's text properties, .. (it's better than you might think)

Completions look like this for Clojure, using the built-in company-mode.

Tabler icons are Free & OSS and there are nearly 5,000 of them so maybe you'd be able to find what you need in there? https://tabler.io/icons

If you do a search for "code" it narrows down to code related icons which might match what you need.