Here are some of the wonderful free slouchy hat knitting patterns I have found.
Paws and Reflection I think this is my absolute favorite.
The Fishy Faye’s Friends hat is adorable. Who doesn’t love seahorses and starfish?
I really like the EmpHATic pattern because you can make this in any weight yarn.
If you go to download the easy Beanie pattern it will look like the pattern is not written in English, scroll to the second page and you will see the English instructions.