Best pots to transplant the cactus in.
Christmas cactus likes to be a bit snug so only go up one size container. Any container with drainage holes is fine. Alternately, plant into a plastic pot that fits inside a decorative container. Remove the plastic pot to water. https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/advice-for-christmas-cactus-care.htm