DMT Dia-Sharp are my personal go-to and my current ones have been going 2 years now and the only thing is my Extra Course is starting to feel a little worn but it's also done the most work (every edged tool I have has seen it at some point)
Here's a few examples but use extreme caution on Amazon. If you are paying less than $50 for one of these it's not real. Prices vary quite a bit by grit. Back when I got mine there was a coherent page for them with a dropdown for grit but I can't find it now, sorry.