How can I get ETH without buying?

Could you please elaborate on how I can acquire ETH without purchasing it directly? I'm quite curious about alternative methods. For instance, is it possible to earn ETH through mining or staking? Could you provide any insights into these options? Additionally, are there any platforms or communities where I can contribute and be rewarded with ETH? It would be great if you could provide a step-by-step guide on how to proceed. Thank you in advance for your assistance!