I forgot to mention, I already have 10 red cherry shrimp in there. And a bunch of ponds snails I can't get rid of for the life of me! Lol I have an assassin snail in there also, but so far hes not done much to cut down the population. I plan to get a few more assassins when I do another online order.I don't know if you count shrimps as fish, but you could add shrimps and of course snails. You could probably add rasboras as they're quite small. I don't think the fry will fit in their mouths, however I don't think 10 gallons is enough as you'd need to add a small school. I know it's only fry you have in the tank, but those fish poop a lot.
I'm not sure, though, so hopefully someone else will comment.
I agree with this, personally I wouldn't put anything as you want to do frequent water changes to keep it thoroughly clean to increase survivability and keep defects at a minimum growing out in a 10 gallon has a slight chance at stunting though there's not many fry. Overcrowding it would increase that chance.Welcome to Fishlore!
It's probably best not to put anything in with them in a 10 gallon, depending on the size of the fry your tank is likely pretty much fully stocked and when you have tiny fry you want to keep the bioload as low as possible to keep the water pristine.