Shure SE846 are the best IEM period. Etymotic ER4 were good once (like 20 years ago) but have long been superseded. Headphones will be easiest for audibility as there is no room reflection/reverb in the sound and these IEMs eliminate all background sound by 37dB making critical listening much easier.
For computer speakers Genelec active 8020 would be ideal they are not true reference like ATC but have a pleasing coloration with a small tilt up in the treble which should suit your hearing.
If you are doing recording projects then ATC is best as they go very loud without any change in the sound balance and little to no compression. Honestly though, if your hearing is shot (my sympathies as this must be so frustrating) then you probably should hire others to mix and master your recording projects....
FYI Clarity in sound production is a problem with a lot of modern bass heavy speakers and headphones. Resonant bass will mask midrange ruining clarity. With ER4 you have very little bass so you are on the right track. For speakers ATC are very tight. Totem tend to be mildly bass boomy and are pretty good compared to most hifi bass heavy speakers.
For computer speakers Genelec active 8020 would be ideal they are not true reference like ATC but have a pleasing coloration with a small tilt up in the treble which should suit your hearing.
If you are doing recording projects then ATC is best as they go very loud without any change in the sound balance and little to no compression. Honestly though, if your hearing is shot (my sympathies as this must be so frustrating) then you probably should hire others to mix and master your recording projects....
FYI Clarity in sound production is a problem with a lot of modern bass heavy speakers and headphones. Resonant bass will mask midrange ruining clarity. With ER4 you have very little bass so you are on the right track. For speakers ATC are very tight. Totem tend to be mildly bass boomy and are pretty good compared to most hifi bass heavy speakers.