What is the tag question of well come?

The tag question for "Well, come" depends on the context.

Here are a few possibilities:

* "Well, come, won't you?" This is the most common and polite way to invite someone in.

* "Well, come in, will you?" This is also a polite way to invite someone in, but it's more casual than the first option.

* "Well, come on in, why don't you?" This is a more informal and friendly way to invite someone in.

The best tag question to use depends on the relationship between the speaker and the listener, and the overall tone of the conversation.