What are some rare mangas that are worth reading?

Well, 'Death Note' is a great choice. The intense psychological battles and moral ambiguity make it quite dark and engaging. Also, 'Parasyte' has a creepy and dark atmosphere that keeps you on the edge of your seat.

I think 'Fruits Basket Another' is a good choice. It's a short continuation of the popular 'Fruits Basket' series, with charming characters and a heartwarming story.

I'd recommend 'Uzumaki' - it's really creepy with its twisted spiral-themed horror. The art and story will give you chills.

One great finished manga is 'Fullmetal Alchemist'. It has a compelling story and well-developed characters.

You could try 'Sekaiichi Hatsukoi.' It's long and offers deep character development and interesting storylines. The art is also great.

There are several, like 'Dragon Ball' and 'Sailor Moon'. They have engaging storylines and memorable characters.

'Koisuru Boukun' is another one. It has a unique take on the yaoi genre and has gained quite a following over the years. The emotional depth in the story makes it stand out.

Well, 'Given' is a really cute one. It has a sweet story and lovely art.

There are several like 'The Day the Cat Smiled' - it's got sweet art and a heartwarming story.

Naruto is a great choice. It has an engaging story and diverse characters.