Sunrace does 11-46 all steel if you want something cheap and available. I got an XT one and the alloy cogs aren't lasting very well, also massive jumps in the easy gears, you end using only the alloy cogs for climbing at an easy pace.
They do black or silver, I get silver for everyone since it's cheaper. There's a heavier versiĆ³n and one lighter with red ano alloy carriers but all cogs are steel in both. Shifting is worse than shimano, but that's the case with all aftermarket cassettes.
Sunrace does 11-46 all steel if you want something cheap and available. I got an XT one and the alloy cogs aren't lasting very well, also massive jumps in the easy gears, you end using only the alloy cogs for climbing at an easy pace.