Several rabbit breeds are known for their heat tolerance. Here are a few breeds that generally handle heat better than others:

1. Californian: Californian rabbits have short, dense fur that helps regulate their body temperature, making them more heat-tolerant.

2. Florida White: This breed has a compact body and short fur, which helps them cope with hot climates.

3. Champagne d'Argent: These rabbits have a dense coat that provides insulation, helping them tolerate both heat and cold.

4. Silver Fox: Silver Fox rabbits have a thick, lush fur that insulates them from extreme temperatures, allowing them to handle heat reasonably well.

5. American Chinchilla: This breed has a dense coat that offers insulation and protection from temperature extremes.

While these breeds may be more heat-tolerant compared to others, it's important to note that all rabbits are sensitive to heat, and proper care should be provided to ensure their well-being during hot weather. This includes providing shade, fresh water, proper ventilation, and avoiding exposure to direct sunlight or high temperatures. Regular monitoring of their environment and taking necessary measures to keep them cool is crucial.