The UI on the Geoscape is fantastic for what it is, but it shouldn’t be the only UI for interacting with or looking at information about the Havens.
There should be another bottom row UI element for a haven screen. This screen would have a row for each Haven, a column for each thing. This would allow a quick look for which havens have soldiers or resources available, how much a given haven likes you (so you can distribute your technology raids) and which havens have which buildings so you can easily identify diplomatic mission targets.
Note this is only a mockup, and isn’t a great one.