I know there are a few base-foundation suggestions here and they are mostly likely to come back but my suggestion is to make them look nicer.
Remove these ugly looging legs/pillars OR give options how to “snap” foundation-pieces to the ground like either legs/pillars (the old way) or just a solid block of metal (new way) so it looks more robust.
Advatage imo for the new way is that big/huge bases would look so much nicer (instead of looking floaty with legs) with a mixture of both legged foundations (to reach hangars more easily) and solid ones.