Based on your speakers, set up Hegel, Music Fidelity, Parasound are all fantastic choices. The Hegel gives you more in 1 box with streaming and a DAC, the MF and Parasound lack those features. All of them punch above their weight class, all have great build quality and the ability to drive most speakers, you’d have to work to find speakers they can’t drive.
If you stretched your budget a bit, Coda CSiB is an absolute steal, value off the charts based on build quality, parts used. You might be able to luck into one used at around 3 grand give or take. The Krell 300i is also fantastic, if you find a used one that doesn’t have the built in DAC, might be able to come in around 3 grand give or take. I’ve had the Coda, Krell, Parasound A21, various pre’s Krell Illisions ii, Zesto Leto, Used the Coda CSiB as a pre, Parasound P6 and a couple others I’m forgetting at the moment. Got to compare the CSiB, Krell 300i, Parasound and Primaluna Evo400 integrated in my system at the same time, owned most of the gear, got the Krell gear from a dealer to try. I ended up with a Krell amp, using the Coda CSib as a pre only and then have cycled several pre’s into the mix.
All that said, I have real world experience with what I have listed above. Coda, hands down best build quality and components used in their gear, punches way above the price point. Krell XD gear sounded the best to my ears so that’s how I ennded up with Krell, built extremely well, legendary brand.
You have a great list to start, all punch above their weight class and think you’ll be happy with any of them. If you stretch, save a bit or pay the waiting game, I think moving up to the Coda or Krell would be big steps up and well worth it but it’s really easy to spend someone else’s money, that might not even be an option.
Good Luck!