I think most tetras, rasboras, and nano fish are safe with adult shrimp. They would peck at the babies since they're so small and resemble brine shrimp. Of course if you provide great hiding spots by heavily planting then the babies will survive
If you check the Planted Nano tanks section you can see a bunch of hobbyists with fish and shrimp. There is also a list of nano fish there too, might help! The smaller the mouths on the fish the less shrimp casualties you'll have :P
I do agree that an empty water column looks a bit ... sad, haha. I'm running into that problem right now since I want fish but it's not heavily planted enough for the shrimp babies to hide and survive. I'm basically waiting it out.