I believe gold is top tier cash now. I do not bother farming for money because in my main save I am almost maxed.

I would jump into the current expedition. You can start with your current save now. If you go to the anomaly there is a desk behind the nexus mission terminal near the quicksilver merchant. From there you can start the expedition.

After you finish the expedition do any story missions you have and eventually you will start getting prompts to work on the new stuff.