Where can I buy and sell Kaspa coins?

I'm considering investing in Kaspa coins but I'm not sure where to begin. Could you please guide me on the best platforms to buy and sell these coins? I'm particularly interested in those that offer competitive prices, secure transactions, and a user-friendly interface. I'd also appreciate any advice on how to safely store my Kaspa coins once I've purchased them. Could you also mention if there are any fees or commissions involved in the buying and selling process? Any information you can provide would be greatly appreciated.