How do I sell my Terra Luna?

Hello there, I'm interested in learning how to sell my Terra Luna holdings. I've been keeping track of the market and think it's the right time to cash out. Could you please guide me through the process step-by-step? What exchanges are best for selling Terra Luna? Are there any fees or commissions I should be aware of? And what about taxes - do I need to report the sale to the relevant authorities? Thank you in advance for your help.