Cats like to rub their heads against people usually have the following meanings:

Marking odor: rubbing on the owner Leaving its own scent on its body indicates that it belongs to its owner.

Expressing affection: This is their way of getting close to their owners.

Attention-seeking: I hope the owner can play with it or give it more attention.

Request for petting: It means that it wants the owner to pet its head or body.

Build a connection: Strengthen the intimate relationship with the owner.

Habitual behavior: Some cats may just be used to interacting with people this way.