Hi @lksmks792, I'm in Belgium too, in the deep South part, close to Luxemburg.
You could come home if you are in the neighbourhood and try my Casio GP-510 BP, which is an hybrid digital (upright) piano with 3 of the main piano brands sampled: Bechstein, who provided the grand piano mechanism, Steinway and Bösendorfer.
I also own a Korg B2 (weighted keys) connected through my computer, to the VSL Synchron Steinway D standalone software and it sounds amazing through my calibrated monitors and headphones too.
If you are in the North part, Maene in Gent, and many other places, is the place to go to buy a piano (second hand or new, acoustic, hybrid or fully digital): https://www.maene.be/en_BE/
If you want to stick to an acoustic upright, have a look at the Zimmermann brand, owned by Bechstein: https://www.bechstein.com/fr/pianos-droits-et-a-queue/zimmermann/#zimmermann
Check the ads there if you're in the North part, and you'll be amazed by the number of acoustic pianos almost given for free: https://www.2dehands.be/l/muziek-en-instrumenten/piano-s/#Language:all-languages|sortBy:PRICE|sortOrder:INCREASING
Or here, if you are in the South part: https://www.2ememain.be/l/musique-instruments/pianos/#Language:all-languages|sortBy:PRICE|sortOrder:INCREASING
You'll certainly get the same ads on both as it's the same website in the two of the three main Belgian languages.