I echo @generic and @rrwwss52 on this. Given how you’ve described yourself, probably the best (or worst) thing you can do is to train your ears. Best because you will notice differences, and worst for the same reason.
When the world changes back to something near normal, and you can listen to more live music of different types, that will help you define what you consider good sound. Since your profile calls you a music lover (we all are here), maybe you have already been to some good concerts.
Why not post here:
and here
and describe what you heard and what you liked? Changing where you sit in the room has a much more profound effect than any change of working cables. Likewise, so does how you fit the IEM and what kind of tip you use. Also, never listen to me about IEMs - I’ve still not found any that I like, usually because of fit and comfort, so I’ve never heard any that cost over a couple hundred bucks.