Meguri seems to be on good terms with almost all students of Sobu high school.
Student CouncilShe has a good relationship with the student council members. As the president, she spends most of her time with student council members/committee. She also assisted with selecting the next President candidate. She actively participates in various committees as well (cultural committee, athletic committee).
Even with her retirement from student council and busy exam schedule, Meguri participates in events and is seen hanging out with the current student council members. She participated in the pre-Valentine's Day event.
Haruno seems to know Meguri and her ways of thinking, as she predicted that Meguri would ask Yukino to succeed her. Even though Meguri never said anything like it during the election, she mentioned to Hachiman that she hoped Yukino would have succeeded her.
Shizuka directed Meguri to the service club for help with the Athletic Festival. Shizuka and Meguri view each positively and are on good terms
It was later hinted that she expected Yukino to succeed her as the President of student council, Yui as the vice president and Hachiman handling general affairs, and she would visit them even after her graduation to discuss their past fun moments.
She is one the few people who holds Hachiman in high regard, and acknowledges his leadership skill. She is also aware of Hachiman's true motive for provoking Sagami on the rooftop, and even though she was disturbed by it, she still views Hachiman in a positive light. Meguri was relieved when Hachiman accompanied Yukino during the athletic festival committee, as he wouldn't let things get out of hand.
Since Yui was not on the Cultural Festival committee Meguri is not as familiar with her as she is with Yukino and Hachiman. In the anime Meguri mistakes Yui and Hachiman's name when she introduces herself and Hachiman. The two have similar qualities and bond during the Athletic Festival planning.