Trending @Accenture; Genuine resources to learn GCP and Linux from scratch.

Hello all Actually I wanted to learn GCP from the very basics( for my revision ) to intermediate and Linux as well. Though I have knowledge in gcp with a few certificates( Basics one). I want to know about Linux certifications which can be a good one for associates. Please let me know about your preferences. And please mention about any courses or any resources in YouTube to learn this. Thank you.