Which cryptocurrency exchange is best for beginners?

As a newcomer to the world of cryptocurrency, I'm often faced with the daunting question of which exchange platform to choose. With so many options out there, it's crucial to find one that's not only reliable but also user-friendly for beginners. So, which cryptocurrency exchange would you recommend for someone who's just starting out? I'm looking for a platform that offers a straightforward interface, low transaction fees, and a diverse range of coins to choose from. Additionally, it's important to me that the exchange has a strong reputation for security and customer support. Could you suggest a few exchanges that fit these criteria and perhaps explain why they're suitable for beginners?