The Delinquents - The 100
Allegiances may have changed over the course of the show, but there's no arguing that the delinquents were the OG's of the 100. They were just 100 kids sent to the ground who had each other's backs no matter what. We'd give anything to go back to the good old days.
The Girls of Scarlet - The Bold Type
Kat, Sutton, and Jane are the epitome of healthy female relationships. They show nothing but support and love for each other and would do anything for each other's happiness. Like they said themselves, they're a package deal.
The Sirens - Gotham
There are plenty of things to be said about this group, but first and foremost they are absolutely badass. It'd be impossible not to feel invincible alongside these guys.
The Shadowhunters - Shadowhunters
This particular group of Shadowhunters love each other more than should be humanly possible. Which makes sense since they're not humans. Although Magnus and Simon may not have angel blood coursing through their veins, they are of course included in this amazing group.
NYC Police Department - Brooklyn Nine-Nine
These guys may not always get along, but at the end of the day, they've got mad love for each other. Throughout the show, this group of people realized the importance of working together and being part of a team. And let's be real, you would never be bored hanging with this squad.
McCall Pack - Teen Wolf
The members of Scott McCall's pack may have changed over the years, but it was always made up of an awesome group of friends. However, no one can argue that Stiles, Lydia, Scott, and Allison really brought the show to it's prime.