Websites that list all the kanji that have a particular reading

Google search results tell me that no one has ever asked this question, and there aren’t many websites that have this feature. Only Kanshudo, Jisho and Wiktionary offer such search, and neither of them is comprehensive. What I want is simple: I type in a mora/phoneme, and I get a comprehensive list of kanji that have that particular reading (my main focus is on-yomi). Either all the kanji that officially have that reading, or ideally all kanji that have that reading plus kanji that sometimes have that particular reading in a certain compound for whatever reason (through rendaku, or because conventionally a word is written with that specific kanji, even though that’s not its ordinary reading etc.).

Example: An almost comprehensive list of kanji with the reading どう- 同, 動, 道, 導, 働, 童, 洞, 銅, 堂, 胴, 瞳, 憧, 撞, 萄, 慟, 獰, 恫, 瞠, 等, 豆. As you can tell, the kanji 同 makes kanji that incorporate it be read どう as well (筒 is an exception though). Same for 童. I call them “blueprint kanji”. But doing the kind of search I want with radicals/blueprint kanji would be extremely inefficient.

Ideally, the list wouldn’t include obsolete/archaic kanji, or extremely rare variations of kanji with that particular reading.

I’m asking this because now that my vocab size is approaching 20k words, I realize more and more how kanji are *the* backbone of the Japanese language. Without them, Japanese is a husk of a language, and remembering which phonemes go with which kanji makes memorizing words much easier. It has got to a point where I now think in terms of kanji, not kana anymore. I hear a random word like せんどう and my brain immediately tries to figure out what’s the most likely combination of kanji that would form the word せんどう (although unfortunately when I first heard 扇動 I didn’t realize せん was from 扇, although I had an inkling that どう was 動 from context).