Where can I stake sei?

Could you please clarify where exactly can I stake sei? I've been hearing about staking as a way to earn passive income from my holdings, but I'm not quite sure where to start. Are there any specific platforms or exchanges that offer staking services for sei? Are there any specific requirements or steps I need to take in order to stake my sei? I'd appreciate it if you could provide some detailed information or point me in the right direction. Thank you in advance for your assistance.