GSOC-Suggestions on choose hardwork to work on

[h1997xy at gmail.com]

Dear all,

My name is Hebe, and I am a y2 computer science student interested in the "Improve support for an embedded CPU/board" gsoc project.
As a computer science student, it is hard to choose a hardware. By any chance, would you mind providing some advice on which CPU to work on? Which specific type of CPU is the most in-demand?
Thank you for your time!

Sincerely,
Hebe