How to get Solana for free?

Could you please elaborate on the methods or strategies that one can employ to acquire Solana cryptocurrency without having to spend any money? Are there any legitimate ways to earn Solana through contests, giveaways, or other promotional activities? Are there any potential risks associated with these methods, and how can one ensure that they are not falling victim to scams or fraudulent schemes? It would be great if you could provide some practical tips and insights into the process of acquiring Solana for free.