We just bought a nice tractor and I would like to put a loader on it if I can find one. I think the following ones can fit with some modifications
BF400g
LA400
LA450
L485
The BF400G is the appropriate loader. Good luck finding a used one, new ones are probably not available so used may be the only way to go. Be sure to get all mounting hardware, too. You can also get an after market loader such as Koyker but be prepared to pay $4000 to $5000 for it.