Maybe @Cris_Whetstone will reply here. He’s had both Vilmart GC and Bollinger SC and is very good about coloring distinction of stuff. @Ed_Steinway offers the 244. I believe that is a smart rec, too.
Try this link, with a post from @Blake_Brown, who knows Champagne as well as about anyone here. See what he says, and the replies to him also from people who have experience.