I would be interested in any number of your plots, but admittedly either leaning towards magical-medieval fantasy, or super high tech/space. Which seems to be most of them. 

Depending on the plot I’d be interested in playing: 

Emet-Selch (male, dark sorcerer)
Seven of Nine (female, cyborg) 
Garak (male, humanoid alien)

They’re all... older though. So if you want to play along a child character, sorry! I’m 30 IRL.. 😅