If you're looking for anime similar to Kamen Rider Kuuga, you might like these titles.
León, who has succeeded the name of Golden Knight "GARO" devotes himself to train a young Makai Knight for the next generation, together with Prince Alfonso of the Valiante Kingdom. Then, they receive an order to exterminate the most beautiful Horror in the world which resides in a neighboring country "Vazelia". At the same time, a young Makai Knight for the next generation is kidnapped by an unknown person. León desperately follows them, only to find that he is surrounded by his enemies at a dead end. Then, a Makai Knight Dario who was supposed to be missing for some time suddenly appears and rescues him. Under his guidance, León is led to the town where he meets up a totally unexpected person!
Mendoza, the chief adviser of the king of Valiante, begins a campaign to hunt down "witches," resulting in the deaths of many magical knights and their sorcerer assistants. Anna, a sorceress married to the knight Germán Luis, gives birth to a son before her execution. Germán takes their child, Leon, and flees, raising him to be the heir of the legendary Golden Armor. By the time Leon grows up, Valiante is completely in the control of Mendoza, who drives out Prince Alfonso and his mother. Alphonso decides to seek out the man who inherited the Golden Armor to reclaim the throne and save his people.
Highly advanced town - Russel City. While people enjoy its prosperity in the town, there is a huge conspiracy secretly going on which will shake the world. Sword, a man who notices its movement determines to throw himself into battles and reveal the conspiracy, but only to find a clue - "Eldorado". At that time, Sword happens to meet a girl Sophie who has been looking for the meaning of "Eldorado", a message left by her missing brother. These two, attracted by the word "Eldorado", somehow feel invisible ties each other and start to act together. Their journey with mixed feelings now begins.
Masao, a completely ordinary high-schooler, has just purchased a new 1987 Yamaha FZR1000 motorcycle... only to have it completely destroyed by someone who suddenly showed up calling themselves the "Samurider"! It's certainly a nightmare for him, given that he hasn't even made a single payment on his loan! And while Masao is seething with rage, a mysterious transfer student named Sawamura shows up. Masao believes that Sawamura is the "Samurider", and becomes fired up to exact his revenge on him, but...?!
The Heian world, the beautiful capital Kyo in its glorious splendor. When two attractive Onmyouji meet, the sad, ephemeral, yet beautiful cherry blossoms…… will bloom after a millennium.
Mariko is tough yet kind girl who is really into motorcycles. She ends up in a race to settle things between the rich son of bike maker and herself.
Hiroshi Ozora has always wanted to be a superhero, so he decided to do the only logical thing: create a transforming power suit called Moldiver! With it, he can fight the forces of the maniacal Professor Machinegal, who desires all of the rarities of the world for his private collection - but when his sister Mirai accidentally changes the suit's design to that of a beautiful girl, Hiroshi's plan goes terribly awry! Now, Hiroshi and Mirai must share the suit, alternating between manliness and beauty, to put a stop to Professor Machinegal!