KEF LS50s with BAT VK-55 - good combo?

Hey all - I am thinking about trying the KEF LS50s with my BAT VK-55, a 55 wpc tube amp.  Do you think this would be a good combination?  Is there a better match for this amp in the ~$750 used speaker market, either floor or stand standers? What about other versions of the LS35A, do any at this price point stand out?

Musical tastes are an assortment of acoustic, singer songwriter, and some more aggressive sounding rock and electronics.  Big Thief, Horace Silver, Beck, Anna Meredith, Gordon Lightfoot, Chvrches, for example.

System is the BAT VK-55, sourced by PS Audio Perfectwave DAC with Bridge II being fed Tidal via Roon; speakers are Thiel 2.3s, decent cables etc, posted in Audiogon's systems.

Goal is to hear a classic or oft referenced speaker design that matches well to the VK-55, partly to compare to the Thiels, partly to have a second set of speakers while I tinker with the crossovers on the Thiels.