01 tool steel, 1084, 1095, 440c, 154CM, CPM154, elmax, AEB-L, magnacut
01 tool steel, 1084, 1095 - high carbon steel, very easy to sharpen and economical, will rust quickly
440c, 154CM, CPM154, elmax, AEB-L - stainless, easy to sharpen a little more expensive, can rust if neglected but nothing like high carbon.
magnacut - “super steel”, little tougher to sharpen than above but nothing like other super steels, very “stain” resistant and holds a great edge (tough). Most expensive of the group.
My choice 1095, 154cm and magnacut.
Caveat: D2 is a great steel if heat treat is done correctly and sharpened correctly. Not a great steel for “beginners” as the types of D2 different greatly. The adage of D2 taking “a bad edge and hold it forever” seems to hold true, it’s very tough.