Want a new amp but what to get?

I'm using an Athem STR Preamp with a Rotel 1582 MKII. My speakers are Focal 948's with a JL Audio e-110. I stream Tidal and Qobuz hi-fi through a laptop. Am also open to suggestions for streamers. Budget for the amplifier could go as high as 5k maybe a little more. I'm more interested in finding a good match than spending loads of cash. I want a good quality well built amp that holds it's value and will last a long time and of coarse mix well with what I already have. Anyone have any informed suggestions?