um... I don't think I have ever heard someone describe a specific sound profile like that, but it's fine.
It really is hard to find switches that pertain to a specific sound signature since the switch is only one of many factors that determine a keyboards sound, sound is not something that you should preplan for, apart from a general guideline. This is the same reason why you shouldn't really listen to sound tests for info on how a keyboard sounds since a lot of the time the audio equipment makes the tests inaccurate and there are more factors that you can't replicate to recreate a sound test.
Another thing is that we all have different preferences of what constitutes that description and what is our desired sound in a board. For example you might really like foam in a keyboard but I really don't like it personally, it's all preference at the end of the day. But I'll try and help you anyway.
if you are looking for a not sharp signature sound than avoid stuff like jwks, gateron milky tops etc, in terms of plates the metal plates tend to be a lot higher pitch so go for like a pc plate or something.
I personally really like mx blacks for sound, and they are great switches once you mod them (break them in, spring swap them with a consistent spring, lube etc), using a thicker lube like 205g0 helps reduce the pitch as well resulting in a less sharp switch. Pair it with a dense aluminium case with a nice gasket/o ring mount I guess as well, but you have already got a board so it probably didn't help you too much.
Hope this helps anyway.