From an Architectural Digest online article:

Champagne is a lot bigger than it seems. Vineyards can be up to an hour away from each other depending on traffic, so it’s best to pick a home base in the heart of the region. The luxurious Domaine  Les Crayères was the former home of Madame Pommery’s daughter (Pommery was a 19th century French businesswoman who took over her husband’s successful wine business after he passed away). The space was transformed into a hotel in the early 1980s, where it still retains some of the Belle Époque sensibility from its previous owner.

Champagne is one of those places in the world that there’s truly no bad season to visit. Yet, before you let the bubbles get to your head, remember to plan everything in-advance as many vineyards are small, independently owned, and can’t always accommodate walk-ins. The place is also very spread out, so you should consider renting a car or hiring a driver if you’re booking several tastings. Luckily, getting to Champagne is easy, as it’s only a two-hour train ride from Paris. In fact, some travelers even opt to simply make a day trip out of it. Time spent aside, the grandiose French architecture all the way to the glow of the vineyards will warm your heart (no, it’s not just the alcohol) and have you immediately wanting to come back.

To read more: https://www.architecturaldigest.com/story/design-lovers-guide-to-champagne-france