I like Puppy Linux.
It is small and can do many things out of the box.
It can be frugal installed or full installed.
It can copied to and run from RAM also.
You can try Pupy Linux from my GmailDrive.
Download, copy to sdcard, prepare (copy script.bin and uImage for your board as described in the 1st post of my thread).
The image is based on the old puppy version (2012), but it works.