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Aftershokz or Shokz I think they now go as.
You are never going to get high fidelity audio as I think you already know just because of the way they work but shokz make the best, most durable, most comfortable sets out there.
I wear mine for 10 plus hours 5 or 6 days a week, rain or shine, commuting in downpours etc never had issues beyond purely being worn out from how much I use them.
To get the best sound you really need to wear protection of some kind, I use industrial grade ear plugs as I'm working with machines all day and they are perfect for this.
I currently use openrun pro for reference.