Proof-of-Stake (PoS) and Delegated-Proof-of-Stake (DPoS) do not use miners. Nevertheless, block producers are incentivized for proving infrastructure to the network. This means that they are paid out of the currency's inflation.
The evolution of cryptocurrency is seeing this idea carried away from the base layer and onto layer 2. Many are developing sidechains that utilize the same concept of incentivizing infrastructure. This is to ensure there is proper motive to decentralize at that layer also.