Answer:
I’d begin by googling the topic. Read all the top hits to see what others are saying. Clip appropriate quotes and make a file of them, including links to each source.
Note how these articles are buillt, and think about the structure you’d like for yours. Build a simple outline to guide your work.
Decide your thesis after you’ve digested what others are saying. Perhaps your best thesis is that a school library provides a resource that does not exist in the community. Maybe its weather-related. Whatever you decide, use the saved quotes to support your thesis