You might want to check out 'Brave'. The main character has hair that could be described as fiery. Additionally, 'Hotel Transylvania' has characters with hair that has a fiery tint to it. These cartoons bring out the concept of fiery hair in interesting ways.
One example could be 'Avatar: The Last Airbender' where some characters have fiery red hair. Another could be 'The Fairly OddParents' with its colorful and unique character designs.
Well, 'The Powerpuff Girls' has characters with poofy hair. The girls' hairstyles are definitely poofy and cute.
One such cartoon could be 'The Powerpuff Girls' where some characters have unique and raised hairstyles.
One such cartoon is 'Tangled' where Rapunzel has long and voluminous hair. It's a popular choice for big hair characters.
You might consider 'Tangled'. Rapunzel's long and voluminous hair could be seen as having poofs. The way it's animated and styled gives that impression. Also, in 'Brave', Merida's wild red hair has some poofy elements to it.
One such cartoon could be 'My Little Pony: Friendship is Magic', where some ponies have orange hair.
You might consider 'The Hunchback of Notre Dame'. Quasimodo's hair is often depicted as messy. Also, in 'Brave', Merida's hair is quite unruly.
In 'Steven Universe', there are characters with unconventional hair. Like Garnet, whose hair is a big part of her distinctive appearance.
One such cartoon is 'Sailor Moon', where some of the characters have yellow hair.
One such cartoon is 'Tangled' where Rapunzel has long and wild hair. Another could be 'The Powerpuff Girls' with their unique and colorful hairstyles.
Well, 'Avatar: The Last Airbender' comes to mind. Aang's hair is often depicted as wild and unruly. Also, in 'Teen Titans', Raven has that kind of wild hairstyle that adds to her mysterious look.