There are tons of manga sites, if you just type "read [x] online" on any search engine. Same with anime, except it's "watch [x] online". None of the many I've been to over the years have had malicious content, especially if you have any form of adblock.
Unless it's available in your local library, like it is in my case (which is frankly the best way to read any manga, i.e. on paper), there are a ton of websites that translate it as it gets released week by week, like Kissanime, Batoto and Mangafox.
Do note that a few sites don't host the manga, since it is a large manga with an official licensed translation (and they don't want to get shut down, since they are quite popular). However, most manga sites do host it.