On PoS blockchains such as Ethereum 2.0, BSC, Solana, Cardano stakers are accountable for making a future block of transaction and is predicated on the amount of tokens that validators use like a collateral. The PoS block validation also has an akin to the mining pools used in PoW https://financefeeds.com/4-best-cryptos-to-buy-in-2025-with-real-use-cases-and-long-term-growth/