Growing my skills from SQL/RDL developer

I’m a reporting manager for a healthcare insurance company. I manage a team of 11 in which we gather requirements, and develop ad-hoc reporting using sql and excel or more permanent reporting using visual studio to develop RDLs and publish to a share point server.

I recognize times are changing. I started a certification course for data science from MIT but I’m wondering best supplemental learning videos or reads do you suggest?

Also, from experience, how useful is my SQL …

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