Hi Jack,
Thank you for contacting Syncfusion support.
We have checked for SfChart control in 15.1.0.37 and we can find the SfChart in VS2017(Enterprise) toolbox. We have prepared video for your reference and it can be downloaded from the below location.
If you are still able to reproduce the reported problem, kindly share your below system environment such as VS2017 Edition (Professional, Community or Enterprise), VS2017 build version, OS Details. It would be helpful for us to serve you better.
Regards,
Devi