Yes. Bash makes a good one I've used at 500w. The one I have now does 1000w @ 4ohm by Dayton, also good amp. As small as 25w on up to 1000 that I've seen at partsexpress. Might have to go external if you need bigger, but in the house I don't suggest it lol.
Extremely good prices and I have personally installed about thirty or so BASH amps (mostly 500's and 1000's) and never had a problem with any of them. They put out brutal clean power and never get too hot. And more importantly, they seem to be immune to vibration, which is huge seeing as how 90% of the time they are installed inside the box. I have seen other plate amps fail from vibration. Indigo makes great stuff.