There are so many online workshops to choose from...but if I were to pick one or two that I use in my everyday practices the MOST, Layer Love v2.0 would be at the top of my list. I took my original "Layer Love" workshop (now long retired) and Chris Cozen and I beefed it up...way up...using fantastic paint.. You can read about the workshop by clicking HERE.
The "8 Great Paintings" workshop is a monster class that really dives deep into my art practices. This workshop follows EIGHT paintings from start to finish...and I think has one of my best download handouts ever. You can read more about it and see the class samples HERE.