Thrusters options

Hello, I’m looking for some thruster for my ASV. I have two bluerobotics T100 and they perform well. Now I would like to upgrade them to more powerfull ones. I’ve seen T200 but they are plastic and I’m looking for something more robust. I’m thinking on something around 500-700 Watts
Does anybody know a company that makes this kind of product? does anybody test some of them?