I'm using SICP for self-learning and I had the choice of Scheme, JS, or Python. I still chose Scheme.
This is because I figured Scheme would offer something those other languages didn't since Scheme is the original language of the book and Scheme is just "different" than other languages. It forces you to think differently about programming.
I'm glad I chose Scheme. SICP with Scheme is the best choice imo since Scheme most clearly illustrates the lessons of the book.