Trek stories I would watch:

• A show entirely about the Klingon chef’s restaurant on DS9.
• Really anything about the non-warrior Klingon castes. Who wrote all that opera? Who created their warp tech?
• Romulan spycraft
• Bajoran war stories about the occupation
• Data’s life between TNG and Picard.
• Geordi doing trek-tech mythbusters
• Good ol’ fashioned episodic 5 year missions

this isn’t hard. there’s a whole fuckin universe established.