It's very early phase, but I have an idea to introduce my players to Starfinder and one another. The pcs are captives of a fascist regime (the Empire, or Peace Keepers sort of thing) and are aboard a prisoner transport. The ship is hijacked and stolen by an npc who has been given a death sentence and is escaping from a space station. The pcs will be released one by one from their cells and asked to use their individual talents to help the npc and the ship as a whole to defeat the fighters that have been scrambled to stop them. The pcs will learn how to use their skills in the fight, as well as find some gear that will get them started. The concept will also give them an old and clunky ship that will need constant repairs and upgrades. This will drain resources and provide motivation for the characters to go on lucrative adventures. Aside from the ship and getting them together, it will give them a major enemy to oppose (the empire thing). I think it would be an interesting way to get the characters engaged in a new reality/system. Now if I can only get my players excited about a space game...
Let me know if anyone has any thoughts to make this a better start.