I think the OP question has aready been answered, but I wanna give a shout-out for the Keisei-Semantic-Phonetic script - because WK has a tendency to break down kanji into multiple radicals as you progress. But, those can also be lumped together to form a bigger radical sometimes - which might be easier to remember or construct a mnemonic around.
This script helps you identify on-yomi pronunciation relationships between kanji due to the radials present, so it’s super-helpful for learning those on’yomi - or allowing you to guess them with time!
But, it also helps you see that bigger picture of the radicals used! ^>^