How to claim stETH rewards?

I'm quite puzzled about the process of claiming stETH rewards. Could you possibly elaborate on the steps involved? I understand that staking Ethereum, or ETH, is the first step, but then what? How do I actually go about claiming those rewards? Is there a specific platform or tool that I should be using? And what about the timing, are there specific windows during which I can claim my rewards? Also, are there any associated fees or costs that I should be aware of? I'd really appreciate a detailed explanation on this matter as I'm eager to start reaping the benefits of staking my ETH.