We've done a lot of earplug and head phone discussion. As Bud says, noise cancelling head phones work great. There are also noise canceling ear plugs. Some get fitted for custom musician's earplugs at hearing aid clinics. There are some

I use the cheap yellow foam ear plugs. There is a brand called Mack's that are rated best. They are available in a flesh tone to be less noticeable. Amazon has lots to choose from.