Post-master’s education opportunities?
I'm kind of in the same boat - I'm getting an M.S. Analytics but I'm in my first semester instead of my last and I am just so... undecided. Second masters? (edit: multiple advanced degrees is not as uncommon as you'd think) Ph.D? Statistics or Computer Science? On the bright side you shouldn't have any trouble getting good recommendation letters if you want to go the formal route.

I'm eyeballing UT Austin's upcoming online Computer Science M.S. via EdX (estimated 10k tuition total but hasn't launched yet). There's also the pricey but IMO high quality earn-your-way in Harvard Extension School where I'm eyeballing the Software Engineering Masters. A lot of our alumns and even PhD's I know really like coursera. 

One strategy I use because I'm poor is scope out the textbooks in use at the programs I want to be in and just read them. It's almost 2019 no one can stop you from learning :)