Work as an Au Pair
If you have experience working with children and want to live in one place for at least a few months, consider working as an Au Pair or a live-in Nanny.
As an Au Pair, you would get paid to live with your host family and provide childcare and/or help with cooking, cleaning, etc. You can use your free time and vacation days to travel around your host city or country, using the wages you earn.