So, the title says it all.
As I didn't find anything on digitalocean related to what systems are to select and to see it I need to put $5...
What systems are there?
I would like or windows or ubuntu(desktop ubuntu, no...
Desktop environments are not included in the droplet choices, however that does not mean you cannot configure and use one.
Here is a great guide setting up tightvncserver and xfce on Ubuntu.