All the episodes of Solo Leveling anime including it’s season 1 & season 2 (released till now) is available on Crunchyroll. It’s available there in 10 dubbed languages including English, German, Spanish, French, Italian, Portuguese, Hindi, Tamil, Telugu & obviously in Korean.
Additionally if you want to read the Solo Leveling manga, then you can read it on it’s officially hosted website on MangaPlaza.
Beside, if you want to read Solo Leveling manga for free that too without ads, then you can follow the below given Google Drive link. Here you can read all the 200 chapters along with Solo Leveling Ragnarok (updated) in pdf format (I got it from a reddit post though).
