If you want tutorials that are clear and understandable and work, then I recommend the Tutorials at DigitalOcean. You might think it is obvious, but I can’t count the number of how to technical guides on the Web that don’t work are hard to understand and confusing. All the ones I’ve used from DigitalOcean have worked well. Plus they are a pleasure to read.
Now when I am searching on for a technical topic, I put in “DigitalOcean” as part of the search terms.
Installing and configuring and using IT is hard enough: make getting started that much easier by using their tutorials.