If you want to use Python (which would be nice, although most data courses are in R), then this looks good and practical: https://www.udacity.com/course/intro-to-data-science—ud359.
If you are happy to use R (a less generally useful language), then I can vouch for John’s Hopkins’ Courses courses being very good:https://www.coursera.org/specialization/jhudatascience/1.
If you want to use Python (which would be nice, although most data courses are in R), then this looks good and practical: https://www.udacity.com/course/intro-to-data-science—ud359.
If you are happy to use R (a less generally useful language), then I can vouch for John’s Hopkins’ Courses courses being very good:https://www.coursera.org/specialization/jhudatascience/1.