Which wave maker depends on your personal preferences. Its like cars. Depends on what you want to spend on them. Mercedes / BMW , go for Vortech pumps. They are expensive, very controllable and does an excellent job. However if you want cheap easy to use options, nothing beats a Sun Sun powerhead in terms for bang for buck. They are dirt cheap, but those suction cups don't last. And never open them up, you will break that ceramic shaft.
Then there are a lot of pumps in between. Tunze, top quality, I rate them just under the Vortech, just due to the external motor on the Vortech. Other than that they are top quality. Seio, simple and relatively cheap. Sicce Voyagers, with a controller that switches between them. Here I prefer the Voyager above Seio, just personal. There are plenty more pumps out there.