Ive done the CodeAcademy SQL for Business by Periscope. But was short and pretty basic. I need exercises and more concepts of data manipulations, joins, etc. Im interested in a tutor or a course.
Depending where you live there is a great organization I teach for that has locations all over the US. It's called General Assembly. Website: https://generalassemb.ly/
I teach a Data Viz 101 there but they have, at the very least access to, lots of professionals who are more than qualified to help you out. I may be able to help or, depending on what you need, can put you in touch with someone who can.