When I first learned emacs I followed the built-in tutorial. It is a good exposition of the most basic emacs concepts and keybindings. It is interactive in that it is an editable buffer that encourages you to try out the operations as you read about them including searching, text insertion/deletion, kill/yank operations, opening files, switching between buffers, splitting windows, and more.
One (arguable) downside is that it is a long (1,160 lines) text document with no pictures, so it may not be very appealing to people who are used to flashy animated tutorials with embedded videos, etc. Personally, I did not find it to be boring because it is fairly hands-on, and it takes less than an hour to work through all of the examples.
You can access the built-in tutorial by typing
C-h t (which means Ctrl+h, then t).