Which Wi-Fi is best and cheap?

I'm curious about which Wi-Fi option is not only the most reliable but also affordable? Could you please elaborate on the key factors I should consider when choosing a Wi-Fi service? Is there a specific brand or type of Wi-Fi router that stands out in terms of performance and cost-effectiveness? Additionally, are there any hidden costs or ongoing fees that I should be aware of? I'd appreciate it if you could provide some insights on how to make a smart and cost-conscious decision when it comes to selecting a Wi-Fi service.