"Come right in" is a phrase that is commonly used to welcome someone into a space. However, there are a variety of synonyms that can be used to convey the same message. These include phrases like "please enter," "welcome inside," "step into my office," "feel free to come in," and "come on in." Each of these options can be tailored to fit the tone and context of a particular interaction, whether it is a formal business meeting or a casual social visit. Regardless of the wording chosen, the goal is always the same: to make someone feel comfortable and welcome in a new environment.