Oh! Awesome topic!
Also, it's a bit thematic if you consider that I have a Super Sentai/Power Ranger team based on a genre. Being a team, it wouldn't seem fit for them to not fight all together at some point. The main team's theme would definitely be "SEB 4 U (Wild Mix)" from the SEB All-Stars, with the 'Sixth' rangers taking Franz Tornado & The Tri-Star Girls' "Super Eurobeat".
Kai, the red ranger, embodies the firey power found in many Eurobeat songs, but is actually apprehensive about their power and the possible destruction it could cause. "1 Fire" by Dave Rodgers fits the idea that Kai fights in order to save others, and reminds themselves of this in order to do so.
Asami, the blue ranger, embodies the element of love in Eurobeat songs (or lack thereof). Fighting with love may seem a bit mushy, but Asami's pretty tough. Hotblade's "Power Two" is a good example of a boss theme for her. (Instrumental version here)
The green ranger power has a bit more complex of an embodiment, but it's not as explosive or flashy as what the others use. Miwa, the one who holds this power, would definitely fight to the instrumental version of Tanith & Dark Evil's "Welcome To The Show".
As the yellow ranger, Kanna embodies the power of rhythm and dance, and while she's very enthusiastic, she's not so confident. Also, she's not much of a fighter. Her theme would be Ace's "I'll Never Break".
Being the youngest, yet one of the most powerful on the team, Mariko is ready for anything.As the pink ranger, she embodies the speed of Eurobeat, as well as the racing theme in a lot of Eurobeat songs. Her theme would be Manuel's "Never Say Never".
The black ranger, Chinami, is the oldest, but she's far from out of the game. She's a 'Sixth' ranger that embodies all the spookiness (or rather, spoopiness) of Horror-themed Eurobeat. "Boom Boom Scream" from Domino & Scream Team definitely fits, especially with Chinami's lack of seriousness in several cases.
The white ranger, Koji, is another 'Sixth' that embodies the soccer/football theme in Eurobeat. He's also Miwa's brother. I got a bit indecisive about this theme, so it's be either "Super Striker" by Go 2 or Ace's "Fantasista".
Finally, the last ranger, Kazumi, is a bit of a mystery. They seem to embody total and absolute nonsense, with powers that defy logic at times. Their theme would most likely change, but would be along the lines of "Bazooka Pistolero", "Cactus Girl", and other songs under the Hi-NRG Attack Label.
Sorry for the long post and a tone of loud electronic music.