Where can I buy new meme coins?

I'm curious about investing in the latest meme coins, but I'm not sure where to start. Could you provide me with some insights on the platforms or exchanges that offer the widest selection of new meme coins? It's essential for me to find a reliable source that not only has a diverse range of options but also ensures the safety and security of my investments. Additionally, I'd appreciate any tips or advice on how to research and evaluate these coins before making a purchase. Could you elaborate on the key factors I should consider while making such an investment?