Every time I have the need to type this kanji, I have to copy/paste it, or type a word using it (e.g. 中々) and then delete the excess.
Surely there is a way to type this kanji! I’ve tried the Microsoft IME and the iOS japanese keyboard, and neither recognize “noma” as being this kanji.
Whenever I have a kanji that doesn’t easily come up (like the ones that all have the same reading), I usually type another word that has it in there, then delete the other part. 人々 or 中々, for example.
I’m honestly not too bothered by it, because it’s only really a problem in isolation, like on kamesame. Once you start typing full sentences, it’s great at figuring out the right characters based on context.