Scrypt miners

Scrypt is unusual in that you get paid twice. Litecoin and Dogecoin are merge
mined, so a single machine earns both coins from the same work, which is why Scrypt hardware often shows a better return than the SHA-256 equivalent at the same power draw.

The Antminer L-series dominates here, with the L9 and the L11 and their hydro variants at the top end, and the Fluminer L1 Pro as the value option. Efficiency is quoted in joules per megahash on this algorithm, so do not compare those numbers directly with a Bitcoin miner.