Combine all the ingredients (except almond milk and flour) into a 6-quart crockpot. Stir the ingredients until they are mixed together well and cover the crockpot with the lid. Cook on low for 4-5 hours, or until you can shred the chicken easily. Carefully shred the chicken in the crockpot using two forks.
In a small bowl, make a slurry by whisking together almond milk and flour. Stir the mixture into the crockpot and turn the crockpot on high for 20 minutes to thicken the chili.
Scoop the chili into bowls and add your desired toppings.