Old Gen (80's/90's)
A man, with the help of his friends, fights other worldly foes with physical strength and powers.
Dragon Ball Z
These brothers try to find a way to get back what they lost through scientific and (somewhat) magical means.
Full Metal Alchemist: Brotherhood
A boy eats a evil object and now has to go on a journey of hardship, heartbreak, and maturity.
Jujutsu Kaisen
This anime is about a guy getting trapped in a popular video game and now he acts like his in-game character.
Overlord
Delinquent dies but comes back with powers and with the help of the Grim Reaper.
YuYu Hakusho
A man and his friends are willing to take on any job, even fighting, but with a comedic flare to it.
Gintama
A boy goes on a journey to fight evil beings and protect/save his sister.
Demon Slayer
A guy dies and is then transported to a fantasy world but he isn't human anymore, he's a monster that is known for being weak. (Full name)
That time I got reincarnated as a Slime
Green Hair, Fish, Assassin, Rock Paper Scissors.
Hunter X Hunter
Giant monsters threaten humanity but hope is restored when a boy learns he has a power to combat the monsters.
Attack on Titan
This is a story of a boy who, with the help of his non-magic abilities, fights through hardship with the help of his non-magic ability.
Black Clover
A anime about a guy really good at full-dive RPGs getting trapped in a game where if you die in-game, you die for real.
Sword Art Online
Planet names with transformations.
Sailor Moon
A boy with a fiery and beastly power takes on bounties and fights for his friends.
Fairy Tail
A man is known as the weakest but has an ability that lets him grow stronger faster through quests and tasks.
Solo Leveling
When portals open up with a magical and fantasy world on the other side, Japan responds by sending the military through.
Gate
People pilot giant mechs to fight for humanities survival.
Neon Genesis Evangelion
A girl finds a member of a disbanded infamous group of soldiers and her goal is to reassemble the group to fight back against a corrupt kingdom.
Seven Deadly Sins
A boy joins an assassination group that is working on taking down a tyrannical government with the help of their mystical weapons.
Akame ga Kill
This adventure/comedy is about a guy who is reincarnated into a new world but decides to bring the goddess who sent him there with him.
Konosuba