Fuel

Most ships are powered by solar radiation for normal space travel, cells built into the ship recharge in every star system that they enter, these cells are powerful enough for hyperspace travel but for small planet to space, or to a near moon trips it dose just fine

Tillium is used by nearly everyone to power their FTL drives, this powder is highly sought after and mined all over the verse

Hydrogen research is promising and a few private ships have switched to this source

Cold Fusion Fully functional thanks to CORE Reasearch but rare and expensive to aquire

Fuel

Brown Coats Silk