The phrase "be sitting" is often used to describe someone who is in a seated position. However, there are several synonyms that can be used instead to add variety to your writing. Some alternatives to "be sitting" include "perched," "resting," "settled," "parked," "positioned," "seated," and "reclining." These words convey a similar meaning but can add depth and nuance to your writing. For example, "perched" might be used to describe a bird sitting on a branch, while "reclining" might be used to describe someone who is leaning back in a comfortable chair. By incorporating synonyms into your writing, you can add variety and interest to your prose.