Given that you are in Europe, I suggest Gradient and Amphion. Both are imo extremely intelligently designed as far as room interaction... in particular, both do an unusually good job with the off-axis response. The vertical off-axis response matters more than usual in this case, given the low ceiling height. If fairly early reflections are pretty much inevitable, you want them to have essentially the same spectral balance as the direct sound, and both of these brands are very good at that.
Speaker recommendation for married couple
I am the guy who opened the thread "Harbeth Love". Unfortunately, wife didn't like them at all. She listened to ATC, nope. Spendor? Nope. I do trust her ears too but we need speakers that we both like. I remember her liking this Sonus Faber speakers (can't recall the model but I know newer Fabers). She also likes KEF LS50 which I find good but not outstanding. Any help for this married couple?:)