Line of lights moving in a straight line, with a few following
Given the date and timing, this could be most like the Starlink satellites in their "stacked" configuration. They are currently in a line, but they will later move to separate orbits. Dr Marco Langbroek has a video of a line of 60 satellites. 

They won't stay in a line; they have ion engines that they will use to spread out into separate orbits.