I love http://codeschool.com for getting productive, Agile Web Development with Rails and Michael Hartl’s Rails Tutorial (free to read)
You’ll see links to http://railscasts.com/, but it’s fairly dated now. I’d go with https://gorails.com/ instead (some free)
If you’re looking for Ruby centric knowledge, I’d go with (my) https://rubyoffrails.com/ (free)
I also teach a Rails class at The Iron Yard — that’s 12 weeks of intensive effort (no job during the class).
I’d start with Agile Web Development, and then sample the rest to see what sticks. Supplement that with asking questions from a coach.