I don't use any myself, but my first search turns up a couple options:
Or if you know better place to ask (other than /r/…), I’d be glad.
This is on Reddit, but it has people talking about just buying new mouse switches for arbitrary mice and resoldering them.
https://old.reddit.com/r/MouseReview/comments/11ay2sq/silent_mouse_switches/
I'm not familiar with this, but it sounds like it's practical to just take a mouse, buy new mouse switches, swap them out, as long as you can solder. So if you've got another mouse that does what you want -- and it sounds like you like the Logitech G305 -- you can probably just modify it, if you're willing to put in the effort. I'd read up on this further before going that route.
This post specifically deals with replacing the switches on a Logitech G305 to make it silent:
https://old.reddit.com/r/MouseReview/comments/vi1z4p/how_to_make_a_g305_silent_this_works_for_other/
Additionally, it looks like silent mice are a thing, so you've probably got a number of options out there if you want off-the-shelf.