If you're not familiar with Xiaomi's Mi2 (Also called the M2s or the Xiaomi Phone 2) hardware, you're probably in good company. While the company's phones are wildly popular with tech enthusiasts in China, Xiaomi has almost zero presence outside of the country. Still, they seem to have at least a few fans in the larger Android community, because the Mi2 model now has official CyanogenMod support. You can download the first nightly builds under the "Aries" codename now.
The Xiaomi Mi2 was first released way back in 2012, but even so, the advanced specs and rock-bottom price tag mean there are probably more than a few people still using it. With a 4.3" 720p screen, a Snapdragon S4 Pro processor, and 2GB of RAM (a big deal in 2012), it should run the KitKat-based CyanogenMod 11 like a champ. Users may also be interested in a more standard Android experience (since Xiaomi's MIUI software is heavily influenced by iOS) or access to Google Apps via Gapps, though some Google services won't be available on the mainland.
As with all nightly builds, prepare for a few hiccups as the ROM developers work out the kinks. The Mi2 has a user-accessible dual-boot system in the recovery, or you can flash a customized recovery for a more standard experience. At the time of writing, there is only one nightly build available.