What are some good cheap filters that work with different size tanks?
Any size; sponge filters
Internal filter; Less than 35 gallons
HOB; Aquaclear, Aqueon, stay away from Tetra/Aqua Culture
Canister; Eheim, Top Fin, Marineland, SunSun
Like Brosj said, really sponge filters work for any tank size.
For smaller tanks, many just use a sponge filter or a smaller hang on the back. Some brands include Aqueon, Aquaclear, Fluval, Eheim (used to have smaller filters).
For medium tanks, mostly recommend hang on the back or canister filters. Some brands include Aqueon, Top Fin (for canister filter), Eheim, Aquaclear, SunSun, Marineland.
For big tanks, mostly recommend canister filters or sumps. Some brands include Eheim, SunSun, Marineland, Fluval, Penn-Plax, API.