Where is best to buy ETH?

Where is the optimal platform to purchase ETH? I've been hearing about various exchanges, but I'm unsure which one offers the most secure and reliable services. Could you please enlighten me on the best practices when selecting a platform for buying ETH? Are there any specific features or factors I should consider? Additionally, are there any hidden costs or fees I should be aware of before making a purchase? I'm eager to enter the cryptocurrency market but want to ensure I make a well-informed decision.