Well, the BeoGram 9500 would be a logical starting point , but you're going to struggle to find one!! You'd be best with one of the slanted decks - they'll look better alongside your 'Center.
Remember, the BeoCenter 9500 has an inbuilt RIAA pre-amplifier, so you'll need to avoid BeoGram 3500, 4500, 6500 and 7000, which already have the RIAA inbuilt to the deck.