Hi! From my own experience, there is a huge demand for babysitters (mainly because the parents are back to work now that the covid measures are relaxed). A great way to get a job is to make flyers with a picture of yourself and post them near your home, and in areas where you know there are lots of families.
When making the babysitting-flyers, you should include as much information about yourself as possible, a photo of yourself, and at least two ways to get in touch with you. After you create the flyer, you can also share it in Facebook groups (search for Facebook groups near your area). Good luck 🙂