Can I buy a router?

Excuse me, I have a quick question about the purchase of routers. I'm curious, is it possible for me to buy a router? I'm in need of a reliable device to connect my devices to the internet, and I've heard that routers can provide a stable and efficient connection. However, I'm not entirely sure where to start looking for one or what factors I should consider before making a purchase. Could you provide me with some guidance on this matter?