It's like sharing your own amount to others that will make it 32. I forgot the platform but base on that, it will ensure all of the participants. But we should wait for the official solution for those who can't avail that amount and the official platform that Ethereum team will suggest.
Is it Rocket Pool? This showed up when I did some searching
The 32 Eth can be shared through an ethereum staking pool, read more at https://medium.com/rocket-pool/rocket-pool-beta-v2-guide-cc68ddf90e61
please do your findings before sending your eth to any staking pool.
But before committing please do wait until some final announcements are made from the actual devs of ETH or from Vitalik himself.