One of the few manufacturers that have the 3.5mm jack and SD card. The only other one I can think of now is Motorola.

I’m going to go against the grain a bit and suggest studying for a certificate. Find one that looks interesting, and just prepare for it. You don’t necessarily have to get the certificate, but training for it will give you a good foundation for running your systems.

https://hackr.io/blog/best-linux-certifications