GoRails (https://gorails.com/) is probably the most similar to Railscasts but which covers more up to date features.

Alongside the excellent recommendations for GoRails in the other comments, also look into the host's other Rails projects: Jumpstart Pro [0] as a template and Hatchbox for easy deployment. This corner of the Rails ecosystem is really nice, positive, and easy.

[0] https://jumpstartrails.com/ [1] https://www.hatchbox.io/

Drifting Ruby is another one https://www.driftingruby.com/episodes

I used https://www.railstutorial.org/ when I learned Rails - the Author is updating it to Rails 6 (Draft now available: https://news.learnenough.com/ruby-on-rails-6th-edition-draft)

There is https://gorails.com/, which I'd highly recommend.