Penn State has a bunch of their graduate stats courses online [1]. I worked through some of their time series class [2] and found it to be pretty good quality.

Penn State has a bunch of their graduate stats courses online [1]. I worked through some of their time series class [2] and found it to be pretty good quality. [1] https://online.stat.psu.edu/statprogram/ https://online.stat.psu.edu/statprogram/ [2] https://online.stat.psu.edu/statprogram/stat510 https://online.stat.psu.edu/statprogram/stat510