well you might get lots of:
SA community
Schoal of red belly Piranhas
with that out of the way lol
personally I am setting up a 125 that's a plecos. (tank is cycling as we speak)
And I have a 125 with a schoal of RBPs
If you had the money a big discus tank would be sweet
or a giant community of small tetras runnmy nose, blood fin, neon. (it would be like 200 fish lol)
A group of oscars would be sweet they are said to school very well in groups of 5 or more. And cheep
Some redhook silver dollars
pacu (lol NOT)
That should get you started. but you are going to need to let us know how you plan on filtering this tank and the overall setup. filters, lights (if planted), substraight, you know the basics.