Yes, toning is the best way to become lean! So many dancers are afraid of resistance workouts because they don’t want to become bulky! But strength training doesn’t bulk you unless done in excess. So definitely do plenty of weight training and leg work and that will really hope make you look much for tones and lean, and it will also greatly improve your dancing! Ever since I started doing a lot of leg work my arabesques and developés have gotten MUCH better because I have more strength in my legs! So strength is actually super important in dancing.
Here is my flexibility video! I do these stretches almost daily and I’m even much more improved since this video! I hope this helped!
Good luck! :)