Qual Exchange usar para comprar Bitcoin?

I'm curious to know, which exchange should I use to purchase Bitcoin? With so many options available, it can be overwhelming to decide on the best platform for my needs. Is there a particular exchange that stands out for its reliability, security, and ease of use? Also, what factors should I consider when choosing an exchange, such as fees, transaction speeds, and the variety of payment methods accepted? Your insights would be greatly appreciated as I embark on this journey to invest in Bitcoin.