Wow that’s actually quite good.Themes:
1. Grasses: fescue, crab, wheat, barley, rye, blue, oat, ect.
2. Terrain: coast, beach, atoll, reef, peak, cliff, glen, coulee, marsh, swamp, knoll, forest, moors, desert, dune, cave...
3. Stars/space: asteroid, meteor, comet, lunar, satellite, rocket, https://en.m.wikipedia.org/wiki/List_of_proper_names_of_stars
4. Street, avenue, lane, drive, boulevard, road, autobahn
5. Ford, Chrysler, Toyota, Mitsubishi, Subaru, Peugeot, Chevy, Jeep, Honda, Beemer, ect.
6. Lion, tiger, leopard, panther, jaguar, civit, bobcat, cougar, lynx (or some other animal category)
7. Cheeses: limburger, cheddar, gouda, swiss, provalone, brie, asiago, monterrey jack, harvati, etc.
8. Numbers in the language of the country the breed originated in.
Some ideas.