Aquariums: Need some inspiration of what to stock in my new tank setup!

The tank size is around 120L. I wanted to create a river bank look with a high point to plant peace lilies. Currently waiting for a shipment of plants to arrive, so the tank will be fairly heavily planted. Currently I've just laid down some dwarf sag from my other tank.

I've kept pretty much all types of community fish; angelfish, gouramis, Cory's, mollies, Rasboras, plecos, guppies, rams, blue acaras, and a few other things. But for this tank I want to go for something that I've never had before. Given that the tank will be more heavily planted, what would people recommend; something a bit out of the ordinary and not your generic community fish?