1. Fullmetal Alchemist Brotherhood

This anime is about Two brothers finding a philosopher stone after a attempt to revive their deceased mother go awry.
This series is full of action adventure comedy drama.

2.Hunter x Hunter

This is a series revolving around hunters, in this a boy want to be a great hunter and goes on Journey with his friends to find his lost father.
This series is also action and adventure packed.

3. Steins;gate

In this there is time travel and a university student and his colleagues need to use their knowledge to stop the evil organization and their dangerous plans.
This series is comedy drama based.

4.Clannad: After story

This series is the sequel of series clannad.
It's a romance drama comedy series.

5. Code glass

In this series a outcast prince is given the power to control others and he becomes the masked leader of the rebellion against
An all powerful empire.
It's action packed drama series.

6. Cowboy Bebop

This is an action series in which there is futuristic misadventures and tragedies of an easygoing bounty hunter and his partners.

7. Fighting spirit

As per it's names this series is about boxing in which a boy gets passion of boxing after being saved by a veteran boxer from the bullies.
It's a action based series.

8. Terren toppa Gurren Lagann

In this two friends become the symbol of rebellion against the powerful spiral king who forced mankind into subterranean villages.

9. Death note

One of the most popular series in which a high school student goes on a secret crusade to eliminate criminals from the world after discovering a notebook capable of killing anyone whose name is written on it.

10. Monster

In this series a neurosurgeon find his life in utter turmoil after following his conscience to operate on a small boy.
This is a crime based series.

11. Mushi-shi

It is a story of an expert traveling around to investigate primeval life form The mushi and solving mushi related supernatural problems.
It is fantasy based series.

12. Gintama

In an Era where aliens have invaded and taken over feudal Tokyo an unemployed samurai find works however he can.
Action comedy series

13. Legend of the galactic heroes

In this, various people especially two commanders cope with the mqssive continuous space conflict between the two interstellar nations.

14. Great teacher Onizuka

This story is about a 22 year old ex gangster and a Virgin. He has one ambition that Noone ever expected of him. His sole life purpose was to become the greatest high school teacher ever.

15. Attack on Titan

After his mother is killed and hometown destroyed a young man vows to cleanse the earth of giant humanoid titans that brings the humanity to the brink of extinction.

dragon ball z is one no questions and naruto is 2 idc what the rest of the top 10 list looks like lol

I would recommend "Made In Abyss." I'm not usually into anime, aside from watching Dragon Ball and Naruto. However, "Made In Abyss" is truly exceptional; it's magical. I'll provide you with a synopsis of the anime:

"Made In Abyss" follows the story of a young girl named Riko who explores the enigmatic Abyss, a massive chasm filled with mysterious creatures and valuable relics. Accompanied by her robot friend Reg, Riko embarks on a perilous journey to uncover the secrets of the Abyss and find her missing mother. The anime combines stunning visuals with a captivating narrative, making it a must-watch even for those not typically drawn to anime.

An orphaned girl named Riko lives in the Belchero Orphanage in the town of Orth. The town surrounds a strange, giant hole descending deep into the earth, which is known as the Abyss. The Abyss harbors artifacts and remnants of civilizations long gone, and is, therefore, a popular hunting spot for so-called Cave Raiders, who undertake arduous and dangerous descents into the mist-filled pit to recover whatever relics they can find. Returning from the Abyss can be dangerous as "the Curse of the Abyss," a mysterious and potentially fatal malady, manifests upon ascension. The deeper one goes, the more acute the effects of the curse; few who have descended into the lower regions have returned to tell of their experiences. Some legendary Cave Raiders earn the title of White Whistles, one of them being Riko's mother, Lyza, who is presumed dead after taking a "last descent" into the Abyss.

Riko's longing in life is to follow in her mother's footsteps and become a White Whistle. One day, she discovers a half-human/half-robot boy in the first layer of the Abyss and names him Reg (after a dog that Riko owned). Riko and her friends sneak Reg into Belchero and quickly welcome him into their close-knit group. Sometime later, a number of findings are made from the depths of the Abyss, including Lyza's White Whistle and pages of discoveries and observations she had made, as well as a message presumably for Riko, stating she is waiting at the bottom of the Abyss. Riko, determined to find her mother, bids farewell to her friends and secretly departs into the Abyss with Reg as her companion.