The Mi Note series is simply a larger version of Xiaomi’s Mi high-end smartphone but it has gotten rather popular as people are buying devices with bigger and bigger screens. The Xiaomi Mi Note 3 was released in September of 2017, comes with the Snapdragon 660 SoC, 4GB or 6GB of RAM, and has just received an official build of LineageOS 15.1 thanks to its maintainer, XDA Recognized Developer dianlujitao.
The LeEco brand has seen better days but the smartphones they did release amassed a lot of dedicated fans. The LeEco Le 2 was released back in April of 2016 and comes with the Snapdragon 652 SoC, 3GB of RAM, and 32GB of storage. It has been receiving offical builds of LineageOS 14.1 thanks to the work from XDA Senior Recognized Developer codeworkx and XDA Senior Member Rk585, but it has now been bumped up to LOS 15.1