I don't think it about incentives. It's roughly the same matter of work to cite a replication than the original experiment. It's rather about convincing the scientists that it's a hallmark of good science to cite the replication.

You start by convincing the cool people. Let them signal that they are cool by citing replications.

Afterwards you go to a journal and ask: "Do you support good science? If so, please add a rule to your paper review process that submitters have to cite first replications instead of the original paper."