This depends on your goals, if you want to focus on more advanced development then I suggest the Game Physics course. If you don't mind moving to C++ and want a real challenge, check-out the Unreal Course.
If you want to start focusing on VR development, and don't mind revising the basics, have a look at our Unity VR Course.
For those interested in 3D modelling, our Blender course is the place to go.
You can always see all our courses here.
Ben & Team