pine64

pine64 is great - they focus on open source hardware and have some very interesting projects
"pinetime" - a linux smartwatch
"pinephone" - a linux smartphone

bedrock linux

it's an amalgamation of different linux distros, creating its own distinct operating system with multiple package managers from different distros
its unique installation process and concept make it very interesting to me
official website

crux

a linux os with a lot of bsd-characteristics
i've been interested in it for a while and i'm looking forward to switching to it as my main distro. the incredibly simple concept behind the entire thing make it very appealing for a nerd like me - i enjoy understanding what's going on on my own system :>
official website