Starfinder
I am very experienced with Pathfinder both as player and GM. I have GMed D&D from 1st Ed AD&D through 4th Ed (hated it, went back to PF.) I have also run sci-fi games in a couple different systems.
Problem is, I am very unfamiliar with Starfinder. I have played one demo game at a Con, and I have the core book. Looking at the bare bones of the Lashunta world, I like the idea of disparate city-states, and I like the idea of a single race party (even if Lashunta cheat a little by being almost 2 races.)
I am willing to try to GM a Lashunta game, starting on the homeworld and not immediately worrying about ships and space travel. My first thought is that of a merc company that does some work for one of the city-states. Not controlled by the City-State, but having a good relation.
If you are willing to be patient with me, I think I can run an interesting game for 2 or 3 players. I have ordered the Pact Worlds book, should be here on Tuesday (insert grumble about Paizo not including pdf version with purchase of print copy). I don't know how much detail there is in that book about Castrovel's various City-States, or if there is another book with that detail. If it is not already available, a little sandboxing could be fun.
Let me know if you are willing to give this a go. If you would prefer a more experienced Starfinder GM, I won't be offended.