Hey everyone!
I've been really interested in learning about Linux for a while now, and I've decided to pick a cert and go for it! I was originally going to start with RHCSA, as I do have some Linux knowledge already. But now I'm considering starting with the conceptual/theory of Linux with Linux+. I came here to ask everyone's opinion, and ended up learning about LPI. So now I have no idea which to start with.

I'm already pursuing A+, N, and S+, so it will be a while before I start studying for my Linux cert. But I want to get a jump on it now so I know what books to get/what to prepare for. So what's a good starting point to get started with Linux?
Thanks!