The phrase "popular with" can be replaced with a variety of synonyms to convey the same meaning. "Well-liked by" or "favored by" are more formal replacements, while "loved by," "adored by," and "beloved by" are more informal and expressive. "Celeb-favorite" or "trendy among" specify the group who finds the item or person popular. "In-demand" or "coveted by" suggests a sense of scarcity or exclusivity. "Revered by" or "respected by" highlights that the popularity is due to admiration or esteem. All in all, there are many ways to express the idea of something being popular with a particular group.