There's also some great reusable earplugs which are much better for the environment than foam earplugs. Plus, it saves money long term vs buying a bunch of foam earplugs

https://us.loopearplugs.com/products/quiet

https://www.flareaudio.com/products/sleeep-pro

https://www.happyearsearplugs.com/ (which someone already mentioned on here)