Video Copilot has some fantastic content and products. Andrew Kramer makes some super cool videos and always manages to keep them funny and simple to follow. This is where I got started and still reference today. The After Effects Basic Training is where I, personally, started.
School of Motion also has some super cool animation tutorials from super complex modeling all the way down to animation basics like squash and stretch. I highly reccomend their series 30 Days of After Effects.
Mt. Mograph is a youtube channel with dozens of animation and motion graphics tutorials.
Creative Cow forums have helped me solve quite a few questions I have had without ever actually having to even post to the boards.
r/AfterEffects is a great place to find some inspiration or ask a question.