You can use any type of canned beans that you like, either three different types, or all the same kind.
Dry beans can also be used, just cook them first using your preferred method.
To make the chili spicier, you can leave the seeds from the jalapeno in. Otherwise, discard them while prepping. You can also add extra spicy chili powder or hot sauce.
Store leftovers in an airtight container in the fridge for up to 4 days.