Well, 'Parasyte' could be a contender. It shares some similarities in terms of the depth of the story and the way it explores human nature, similar to 'The Fable'. There are also unexpected twists and turns in both.
I'd suggest 'Death Note'. It has a similar level of intrigue and mystery as 'The Fable'. The strategic thinking and character developments in both are quite captivating.
I think 'Your Lie in April' might be similar. It has a touching plot and unique art style like Memorize.
I think 'Vampire Knight' could be similar. It has a similar dark and mysterious style, and the plot often involves complex relationships and hidden secrets.
One manga that could be similar is 'Attack on Titan'. It has intense action and complex character development like Hakaijuu.
One manga that could be similar is 'Monster'. It has a similar dark and intense atmosphere and complex plotlines like 'The Hunter'.
I'd recommend 'Protector'. It shares some common themes and a similar visual style with 'Saver'. The character development and story progression are also somewhat alike.
I think 'One Punch Man' could be similar. It has a unique art style and an engaging plot like Dakaratei.
Maybe 'Naruto' is comparable. Both have complex character development and engaging storylines that keep you hooked. Also, the art styles have some similarities in their boldness and expressiveness.
You might find 'Bungo Stray Dogs' comparable. It combines elements of mystery and action, similar to Danganronpa. The character development and the way the story progresses have certain parallels.
I think 'Black Clover' might be similar. Both have complex character development and an engaging world-building aspect similar to Drakuun. Also, the action scenes are quite comparable.
One manga that could be similar is 'One Piece'. It has an adventurous and action-packed plot like Dragonball, with unique characters and a vast world.