Happy Ears Reusable Earplugs

I have these and find them to be extremely helpful with annoying ambient noise.

When I lived in the East Village I was right on 1 Av and did a big deep dive on noise-cancelling devices; something like this (which I have not tried myself, so can’t vouch for personally - and I’m also really unsure about cost, installation, etc.) does seem really intriguing to me.