You might find 'Tower of God' comparable. Both have complex worlds and characters facing challenges to grow stronger. Also, the art styles are somewhat similar in creating an immersive experience.
One manga that comes close is 'The Gamer'. It shares some similarities in terms of the protagonist's growth and the fantasy elements.
I'd recommend looking at The Gamer. It's similar to Solo Leveling in that it has a protagonist with special abilities and a story that keeps you on the edge of your seat with its action and adventure.
One manga that's similar could be 'Sword Art Online'. It has elements of character growth and an evolving plot like 'Leveling Up'.
I'd recommend 'Tower of God.' Both have an immersive world-building and characters with evolving powers, similar to Solo Leveling. Also, the story progression keeps you hooked.
'Hunter x Hunter' is comparable. It features unique powers, strategic battles, and a focus on character growth and their relationships, much like in Naruto.
Maybe 'Honey and Clover' is comparable. It delves into the emotional lives of young characters and their struggles, much like in Oregairu. The art style and character dynamics can give you a similar vibe.
I think Tower of God is quite similar. It has an engaging plot and well-developed characters like SoloLeveling.
The love leveling manga excels in this aspect. The story is engaging and keeps you hooked, and the characters have depth and complexity that you don't often find in similar manga.
They can be quite similar, often sharing core storylines and key character traits.
One manga that could be similar is 'Soul Land II'. It has similar elements of adventure and character growth as 'Douluo Dalu'.
I'd recommend 'The Promised Neverland' as it shares some similarities with 'Solo Leving' in terms of its engaging plot and unexpected twists.