The phrase "am related" has a few synonyms that can be used interchangeably. One possible alternative is "am connected," which suggests a link or bond between two people. Another option is "am related by blood," which refers specifically to a genetic connection. "Am kin" is a more informal synonym, and can be used to refer to any type of family relationship. If you're looking for a different way to express the same concept, you might consider using a related phrase, such as "I'm part of the family" or "we're in the same clan." Ultimately, the best synonym for "am related" will depend on the context and tone of your message.