The phrase "is classified among" can be substituted with various similar terms to convey the same meaning. Other synonymous phrases that can be used include "is categorized among," "is grouped with," "is ranked with," "is placed among," and "is catalogued among." These alternatives can be useful for adding variety and avoiding repetition in writing or conversation. They can also help to convey a particular tone or level of formality, depending on the context in which they are used. Ultimately, choosing the right synonym for "is classified among" comes down to the specific needs of the speaker or writer and the intended audience.