Thanks to the magic of crossovers, a handful of Power Rangers have actually interacted with some DC comic book characters recently. The Mighty Morphin Power Rangers era team ended up fighting alongside members of the Justice League to stop Lord Zedd, Brainiac, and more from doing serious damage to the multiverse.
Since the Power Rangers have already interacted with a few of those DC heroes, could a DC hero become a Power Ranger? In an alternate universe, maybe. Not all heroes are cut out to be Rangers. Everyone has their own style when it comes to taking down bad guys, but the Power Rangers franchise has always been made primarily of teenagers, and they've been following Zordon's rules long after his death: not escalating a battle unless forced to, keeping their identities a secret, and never using their powers for personal gain. So, who would make a good Power Ranger?
10 Would: Beast Boy
Beast Boy might use his own superpowers for his everyday life, but he grows up with the responsibility of being a hero hanging over his head, so he would never abuse the power given to him by the Morphin Grid.
After working with Doom Patrol and the Teen Titans, Beast Boy has more than shown he has what it takes to be a hero and a team member. He might not be used to using martial arts, but his ability to become any animal could really really come in handy for the team.
9 Wouldn't: Batman
Even if he had the chance to join the Power Rangers as a teenager, Bruce Wayne likely wouldn't jump at it. He has a very strict agenda when he first becomes Batman: avenging the deaths of his parents.
Though he's got his own Bat-Family of heroes, and he's worked with the Justice League, he's not the best of team players. Bruce Wayne prefers to be on a team where he calls the shots, which wouldn't work out well amongst the rest of the Power Rangers.
8 Would: Stargirl
Stargirl very much fits into Zordon's "teenagers with attitude" request for a team. In fact, she's not all that different from Pink Ranger Kimberly Hart with her athleticism and optimistic attitude.
Courtney would quickly adapt to the powers of the Rangers, just as she quickly adapted to using the Cosmic Staff. She would also do whatever it takes to keep the world safe from threats. Thanks to her bubbly personality, Stargirl would also get along with most of her teammates after only a few bumps in the road.
7 Wouldn't: Green Arrow
TV fans are most familiar with the CW version of Oliver Queen played by Stephen Amell. His comic book counterpart is a little different, but one of the things they have in common is that they're not always the best of team players.
Green Arrow is great at give-and-take in a partnership, but in a large group, his ego can sometimes get the best of him. He would have a hard time playing by Zordon's rules.
6 Would: Batgirl
Barbara Gordon is the queen of team players, whether she's a supporting member, an active member, or the team leader. She's been through a lot throughout her comic book tenure, and her training with Batman and other members of the Bat-Family has shown her what works and what doesn't in the vigilante life.
As a Power Ranger, Batgirl would have access to even more strength, stamina, and durability, and she'd use it well, understanding the downside of being a hero all too well.
5 Wouldn't: Black Canary
Much like her sometimes-husband the Green Arrow, Black Canary isn't always the best team player. She finds a home with the Birds of Prey, but the Power Rangers might just be a bit too squeaky clean for her.
Black Canary knows what it means to get her hands dirty, just like most of her teammates. While Zordon wouldn't want her to cross any lines, she'd do what she had to do, whether she cleared it with the Power Rangers or not, which wouldn't sit well with the mentor or the team.
4 Would: Lightning
Jennifer Pierce is part of a superhero family, so she's already got a lot of guidance when it comes to suiting up to help the world. She's also already proven that she'll do what's best for her team and the world in the comics.
At one point, her team is responsible for arresting her own father because he's a fugitive. As Lightning, Jennifer could have sided with her father and helped him escape, but she worked with the team to find a real resolution. She's a problem solver who would work well with the Rangers.
3 Wouldn't: Aquaman
Like a lot of the members of the Justice League, Aquaman is usually concerned with the problems that directly affect his home Atlantis. He's also not the best at listening to everyone else's point of view when he wants to do what he thinks is best for his people.
Primarily for that reason, he wouldn't be a great addition to the Power Rangers. The modern version of Aquaman especially has a temper. While he's saved the world countless times, he tends to do it from the depths of the ocean. He might ally himself with a Power Ranger once in a while, but he wouldn't want to be stuck playing by their rules.
2 Would: Shazam Family
Sometimes, Billy Batson goes by the name Captain Marvel. Other times, he simply uses his magic word, "Shazam" to denote his name to avoid confusion with Marvel comics. When he shares that magic with his family, they essentially become the DC version of Power Rangers in their own right. The siblings would make for a great team of Rangers.
Each of the kids has their own specialty, and when they work together, they can do anything. That's not unlike Power Rangers teams with their unique weapons, fighting styles, points of view, and sometimes, powers. The only thing the family is missing is Zords.
1 Wouldn't: Harley Quinn
Sometimes Harley Quinn falls into the villain camp. More often than not in her modern stories, however, she's trying to use her many criminal skills for good.
Harley loves a good team-up. She's worked with Poison Ivy, Catwoman, the Birds of Prey, Power Girl, and more. She enjoys being involved and having other people in on her plans. When her plans are usually very deadly and very illegal, however, and that wouldn't work well with the Power Rangers.