It’s hard to say what you will like in your system. If you have a local dealer, maybe they can let you borrow a few different amps. Else I suggest purchasing an amp from someone that has a generous trial period / return policy and will not hassle you should you want to send it back.
I use a Sanders Sound Magtech. It’s wonderful and dynamic and right at $5 with lifetime warranty. It’s 900 watts per channel into 4 ohms. It has 20 transistors per channel in the output stage, which can handle 7000 watts. For this reason there is no protective circuitry like other amps. That means no chokes! It doesn’t get hot even at full blast. It can be left on all the time and uses next to no power at idle. It’s the only fully regulated transformer; it regulates both current and voltage. And it has been an Absolute Sound’s editors choice for many years now.
If I were to dare try another, I’d want to try the PS Audio BHK Signature 250 amp. It’s a little more than what you want to pay, but I think PS Audio will give a good discount if you trade in your amp to them. Just a thought.
Best of luck!
Jason