Manga is a popular Japanese art form that is loved by people around the world.  It has gained a huge following, and there are several websites where fans can read manga online. Here are some of the best manga sites:

1. MangaPlus - This is a legal manga site that is run by Shueisha, one of Japan's largest manga publishers. It offers a wide range of manga titles in multiple languages, including English, Spanish, and Portuguese.

2. Crunchyroll Manga - This is another legal manga site that offers a large collection of manga titles. It also offers anime, drama, and other content related to Japanese pop culture.

3. MangaPark - This is a free manga site that offers a vast collection of manga titles. The site is regularly updated, and users can find both popular and obscure titles.

4. MangaDex - This is a community-driven manga site that offers a wide range of titles, including some that are not available on other sites. It also offers features like the ability to create custom reading lists and track reading progress.

5. MangaStream - This was one of the most popular manga sites, but it was shut down due to copyright issues. However, its legacy lives on, as several new sites have emerged to fill the void left by MangaStream.

In conclusion, there are several excellent manga sites available where fans can read their favorite titles online. It is important to choose a legal site to avoid legal issues and support the manga industry.