Here’s an alternative suggestion from a bottom up (bass reproduction) perspective vs. the source/amp first viewpoint:
Get 1 (or 2) SVS SB12-NSD subwoofers. Currently at $399 each, shipped. 45 day trial period with return shipping included. 5 year unconditional warranty.
https://www.amazon.com/SVS-SB12-NSD-400-watt-Controlled-Subwoofer/dp/B009F8Y7SO
The real value of this somewhat reversed approach - is that you could then focus on any amp/speaker combo best matches SONICALLY, without worrying (too much) about how the amp will ’drive’ the speakers - because you have relieved the amp of bass duties. A decent sub will also make your midrange and highs sound better as well. You could even consider single ended tubes and high efficiency designs at that point.
Another integrated amp I did not hear above that I would recommend you consider is a Jolida tube integrated. Decent as a low/mid budget alternative. Or a Wyred4Sound M-Int for higher (class D) power.
If you like the Vandersteen house sound, and don’t mind older/used, you could get into these 2CEs for around a $1000. http://www.tmraudio.com/product/tj-791. As an alternative, try to listen to the new Elac speakers designed by Andrew Jones. Cables - Belden 8402 or WE or Duelund 16 guage. Finally, consider adding a network player/streamer to expand your access to content.
Good luck and have fun!