There’s a copy of the old Waring Pro electric ice crusher on amazon. https://www.amazon.com/dp/B074L29WHD/ref=cm_sw_r_cp_api_CPpZBbMFXA505
But those things are just as loud as using a mallet. I think a handcrank ice crusher would be the “quietest” solution. Definitely go vintage too because modern day replicas are mostly made of plastic.
Choices for electric ice crushers in the USA are very limited.
I have a 70's vintage Oster Snowflake. It can take ice about 1 cup at a time and takes 20-30 seconds to crush. About as noisy as running a blender. Can hold about 4 cups of crushed ice before you need to empty the bin it falls into. If you crush several cups of ice it tends to jam, but clearing is easy with a chopstick. Mine is starting to go, when it dies I'll probably replace it with one of the Waring style no-name's.
This is what I use. It works great. Costzon Electric Ice Crusher, Stainless Steel Ice Shaved Machine for Party, Gathering, Home https://www.amazon.com/dp/B074L29WHD/ref=cm_sw_r_cp_api_i_IKXKFb7J91H7Z?_encoding=UTF8&psc=1