Is there any way feudal lords could have worked their lands without using serfs?

Feudal lords could have worked their lands without using serfs by employing free laborers or tenants who paid rent for the land they cultivated. They might also have established sharecropping arrangements, where laborers received a portion of the harvest in exchange for their work. Additionally, lords could have relied on skilled craftsmen and artisans for specific tasks while managing agricultural production through more efficient agricultural practices or innovations. However, these alternatives would have required different economic structures and social dynamics than those typical of feudalism.