What size Dutch oven should I buy?

Across the reviewers and communities we read, 5.5 to 6 quarts is the most-recommended all-purpose size, big enough for a whole chicken or a large batch of soup without being unwieldy. r/LeCreuset commenters repeatedly call 5.5qt the ideal everyday size, while deeper 6.5qt models are praised for soups and reducing boil-over. Larger pots get heavy fast when full.