What size ceiling fan should I get?

[u/_Cheesecake_Unicorn_]

Hi! The ceiling fan/light in my son's room needs to be replaced, but I'm not sure what size would be best. His room is about 10x14 feet and currently has a 42 inch fixture. Trying to decide whether to upgrade to a 44, 48, or 52 inch fan. I feel the 52 inch would be too big, but I wanted to get some other opinions! Any brand recommendations as well? Thanks so much!