A lot of us are really busy and while it is nice to read the “create your own Kubernetes” posts, sometimes you just don’t have time to do so. If you just want to jump in and learn to swim as
A nice full list has also been composed by a github user name salaboy and learnk8s with various contributors here https://github.com/learnk8s/free-kubernetes
Kubernetes is very much a hands on technology. The more you practice the easier it gets.
Good luck and most importantly have fun!!