Here are some examples:
* Shadow the Hedgehog: Rouge and Shadow have a complex relationship, often working together on missions but sometimes clashing over their goals. They share a mutual respect and understanding, and some fans consider them close friends.
* Omega: Rouge and Omega often team up, even though their personalities are very different. They seem to appreciate each other's skills and abilities.
* Knuckles the Echidna: Although they often compete over Master Emerald, Knuckles and Rouge have a friendly rivalry and sometimes cooperate on missions.
* E-123 Omega: Rouge seems to trust Omega, even though their personalities are very different.
* The Chaotix: Rouge has worked with the Chaotix in the past, particularly with Vector the Crocodile.
It's important to note that Rouge is a very independent character who prioritizes her own goals. She isn't known for seeking out close friendships, but she does value loyalty and respect. She has a strong sense of justice and will often team up with others to achieve her objectives.
So, while she doesn't have a tight-knit group of friends, Rouge does have connections and relationships with several characters in the Sonic universe.