See if you have a representative from, E.A.R. Inc. in your area.
They make custom molded ear plugs and have a variety of options for different hearing issues. From solid where you can't hear anything, to single baffle, where most people can hear range commands and such but gunfire isn't an issue, double baffle where you can hear rang commands and other things more clearly but gunfire isn't an issue (more on these in a bit), to a whole range of electronic options. Some of the electronics will amplify speech but cancel gunfire much like electronic muffs, some will amplify or allow sounds like speech or animals moving in the woods, but not cancel during gunfire,,,, they reduce the loud noise lower than the soft noise. Some muffs will do this too..... expensive.
I've been using any one of the 1st 3 options for 15 years or so. I absolutely can not stand earmuffs anymore. Hot in warm environments, they fit funny with glasses or a hat, bulky,,, just a general pain in the.....
If anyone looks into these, please know not all molded plugs are the same. These guys make a great high quality,,, and safe product, they know what they are doing when it comes to your ears and hearing.
As to the double baffle plugs. These take some getting used to. I have hearing issues in my left ear, we didn't feel I was getting full benefit from single baffle plugs, working on a range running classes and matches and taking classes, so went to a double baffle. You can hear,,,, a lot. It is disconcerting at 1st. You hear the gunshot more clearly than you're used to and it takes a bit to realize that it is clear but isn't loud and isn't damaging. Alone on my indoor range and shooting slowly, I could hear the gun and then the sound of the bullet on the backstop. Weird.
The guy who makes mine has a brother who makes them too, he is located at Fort Bragg and a lot of the guys there get his plugs.
A cheaper similar option is the Walker Game Ear, but I've heard very mixed reviews of these.