Which manga is similar to 'Hail the King'?

Hail the King manga isn't on Manga Rock. You should look for legal and authorized platforms to read it. Many unofficial sites like Manga Rock violate copyright laws and may not provide the best reading experience.

There aren't many major differences. The manga and its adaptations mostly stick to the core plot and characters.

You might be able to find them on some less regulated manga websites, but be cautious as these could be illegal and of poor quality.

I think 'Yu Yu Hakusho' could be similar. It has elements of supernatural powers and adventure like Shaman King.

I'd recommend 'The Golfing Journey'. It has comparable elements like the passion for golf and the journey of the main character, similar to King Golf.

I'd recommend 'Insect World Adventures'. It has similar themes of exploring the bug world and facing challenges, much like in King of Bugs. The art style is also somewhat comparable.

Maybe 'Black Butler' is comparable. Both have dark and intriguing storylines set in a night-like atmosphere. There are complex characters and unexpected plot twists in both.

I think 'Attack on Titan' might be somewhat similar. It has a post-apocalyptic setting and intense action.

One manga that could be similar is 'The Seven Deadly Sins' as both have epic battles and a post-apocalyptic setting.

I'm not sure. You might have to read through the novel carefully to find out.