I just got a new tank, and i'm not sure exactly what i want to get, it is a tropical tank, so i need fish that can handle 70+ and it's a 29 gallon tank.
So far, i know of only a few fish that i could get, but i'd like go get some others opinions, this is the list i have so far...
Catfish/Loaches
Kuli loaches
Bumble Bee Catfish
Banjo Catfish
Cories
Algea Eaters
Common Pleco
Otto

Any other ideas?

your tank isn't big enough for a common pleco. Get a smaller species of suckermouth catfish, perhaps a bristlenose or peckoltia. Maybe a whiptail (Loricaria) or twig (Farlowella sp)
Don't have any small fish like neon tetras in the tank with bumblebee or banjo catfish because they will eat the small fish.

common pleco are usually fine, they (or at least from all of the ones i've seen) only grow to as big as the tank will let them, ten gallon, they're usually quite small, around 6", 20 gallon a bit bigger, around 7"-8", then up to the sized tank my father has, which is 45 gallon, where his is 16" long, and has been going fine for over seven years now

Plecos create a lot of waste, its hard to believe if you have gravel as the waste is hidden. Bushynose plecos would be fine in a 29 gallon tank,or as listed ottos. In a 10 gallon tank a pleco will most likely stay small, but will be very unhealthy and the bioload on the tank would be huge.

I'm in the same boat I am setting my 29 gallon up.

Here's what I'm thinking

Bulldog Pleco
2 marble angelfish
6 red sword tails