The phrase "appearing with" can be replaced with a variety of synonyms to add more variety and depth to your writing. Some alternatives could include "emerging alongside," "presenting in conjunction with," or "accompanying." You may also want to consider using more descriptive language, like "coinciding with," "occurring simultaneously with," or "appearing in tandem with." By using alternative phrasing, you can highlight different aspects of the relationship between two objects, people, or events, and help your writing stand out with a greater degree of clarity and nuance. With a bit of creative thinking, you can find the perfect synonym to convey your intended meaning.