There are lots of brands that are "stable" at 2 ohms. Implying they can deal with it for short stretches but they aren't comfortable at 2 ohms.
I recommend Naim. Naim is designed to pair with Focal and it thrives at 2 ohms. Any of their power amps will do extremely well. Focal speakers tend to have relatively low impedances and require high current amps but not much in the way of top line power.