google “phonetic semantic component kanji” or some combination of terms,
How To Look Up and Read Kanji You Don't Know (ctrl+find phonetic, article covers myriad topics)
https://namakajiri.net/nikki/testing-the-power-of-phonetic-components-in-japanese-kanji/
List of Phonetic Components – The Kanji Code
edit: come to think of it, someone even made a userscript just for this:
This is a third-party script/app and is not created by the WaniKani team. By using this, you understand that it can stop working at any time or be discontinued indefinitely. Keisei Semantic-Phonetic Composition by acm I am proud to release the stable version of my first script, Keisei Semantic-Phonetic Composition! Installation Instructions Get Tampermonkey (installation instructions in this thread) Click on the installation link (Tampermonkey should auto-detect .user.js files) …