How do I send Crypto to Coinbase?

I'm curious about the process of sending cryptocurrency to a Coinbase account. Could you please explain in a step-by-step manner? I'm particularly interested in understanding the necessary prerequisites, such as ensuring I have the correct wallet address and sufficient funds. Additionally, I'd like to know about any potential fees or transaction times associated with sending crypto to Coinbase. Could you also mention any security measures I should take to ensure the transaction is secure? Finally, I'd appreciate any tips or best practices for sending crypto safely and efficiently.