Not to find a solution, it was already found. The roadmap plan was always to switch to PoS, the miners and PoW were always temporary until it was developed / ready. Now the beacon chain (core of PoS) is live, with around $6 billion staked. Some of the miners (not all of them by far) are complaining they're no longer going to be needed, going so far as to make a show of "force". Others (like f2pool) have calmly been preparing with rest of Ethereum community, and are transitioning to staking themselves.