
If you're looking for manga similar to Evangelion: 2.0 You Can (Not) Advance, you might like these titles.
Due to a chance encounter with an actual space pilot. Nono, finds herself becoming part of the elite Fraternity. Made up of teenage pilots called Topless, and armed with quasi-humanoid weapons called Buster Machines, the Fraternity's mission is to protect the people of the Solar System from attack by swarms of space monsters.
Years ago, after watching his family die at the hands of the Vegan empire, Duke Fleed managed to escape, stealing the powerful UFO Grendizer that the enemy used to destroy his planet in the process. Eventually ending up on Earth, the boy was adopted by Dr. Umon and given the name Daisuke, intent on living out the rest of his life in peace. However, when his father and the mecha pilot Kouji Kabuto realize that the Vegan empire has arrived at Earth to repeat history, Daisuke is forced back into the pilot's seat to save his new home. Alongside Kouji's flying saucer, can Daisuke and his Grendizer stop the fleet and save the world?
In his skyless cavern of a village Simon toils daily, drilling holes to expand his stifling little world until one day he makes an extraordinary discovery: a small glowing drill-bit and the man-sized mech it activates. Before he can give it a second thought Simon's dragged into a plot to break through to the surface by the local gang leader Kamina, only to have the ceiling come crashing down on top of them under the weight of a giant monster! It somehow falls onto the boisterous Kamina and cowardly Simon to defend their village, but once they defeat the monster what awaits the duo on the surface world? Get ready for buxom babes, beastmen, and giant mechs as only GAINAX can provide them!
After Emperor Gore and the Reptilian empire is defeated, a new enemy, Emperor Burai and his Hyakki empire rises and threatens to take over Earth. Ryoma, Hayato, and newcomer Benkei pilot the new Getter Robo G to save Earth.
While Professor Saotome completes his masterpiece, the Shin Getter Robo, a strange object enters the Earth's atmosphere. Hayato, in control of the lab while Saotome obsessively works, orders Getter Robo and Getter Robo G to launch and destroy the object before it impacts.
Hayato Jin is the leader of NISAR; a private owned research and weapons development organization based in Japan. He, and Professor Tachibana, have been developing various weapons and building up their forces to deal with a threat that started fifteen years ago: the mad scientist Rando. When Rando's forces begin their terrorist operations around the world, NISAR begins its search for exceptional soldiers to pilot their super weapon, the Getter Robo.