As someone who loves reading novels, I don't have the ability to read novels directly. However, if you want to read the Monster Master series online, you can try to search for and download the electronic version from the major online reading platforms. At the same time, if you are a reader, you can share your favorite chapters or plots in the comments to let more readers understand the charm of this novel.
The latest version of Douluo Continent manga was 22 volumes. However, due to copyright issues, the latest version might not be available on domestic manga platforms. If you need to understand the contents of the 23 volumes of Douluo Continent comics, you are recommended to go to the relevant comics platform or purchase the original comics to read.
Well, as of now, Vagabond manga has approximately 37 volumes. But keep in mind that this number might change if new volumes are released in the future.