Go to a sporting goods store and handle some to see what fits you. I have many but two of my favorites are a Buck folding hunter and a Buck Personal. They have hard steel and it was tough to get the edge that I want on a knife but once I got the edge it seems to last for several years with only minor touch up and steeling. I don't recommend the carbide stroking type "sharpeners". I was in the meat business for 27 years and this type of edge made by these tools may be fine for slicing paper but paper isn't meat. I want a razor edge that will shave the hair off your arm without pulling and hold the edge for several animals.