Pick a topic that you’re interested in, and make it sound interesting with hints, questions, etc. to draw the reader in. For example: someone broad like sunglasses. If you like sunglasses you could write what you want about them, mentioning your likes/dislikes, but don’t put it in 1st period POV, more of a 3rd person would work. Most importantly you’ll need a hook for a starting paragraph. for example
“Sunglasses to some can be stylish, and for others it could be irritating to the nose to wear. They all serve the same purpose, so what’s it about them that makes them so useful?”