Prefer integrated, open to solid state
Look at the Parasound Hint used or the later Hint6 new or used, both are good powerful integrateds designed by John Curl, with phono stages, dac, and have subwoofer output with xover adjustment which could be useful also for you later with book shelves by adding a sub or two, and the Hint’s are not laid back/dark sounding, a good match for the SF’s.
Here’s two that sold on ebay, as an idea used, or go another $k for a new one.
https://www.ebay.com/itm/Parasound-Halo-Hint-6-/124318448430?hash=item1cf1f4fb2e%3Ag%3AZMsAAOSwUqNfS...
https://www.ebay.com/itm/Parasound-Halo-Integrated-Amplifier-HINT-6-/274426312775?hash=item3fe515384...
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313&_nkw=Parasound+Halo+Hi...
Cheers George