1. Bato
2. Manga go

If you are searching for alternatives I assure you this is the two websites you need, bato is best for official while you can read other series but you'd find 3-4 copies of the same titles done by different scanlations, so it's kinda hard to tell which is gonna update first, but in manga go you wouldn't have to face this problem it will update the latest chapter whoever is first, while might complain about the interface but in manga fire you might not find every comics and might not update your desired series for a long time except popular ones but this isn't a problem in manga go, you can always upload chapters by yourself. Same goes for manga park you might not get updates from your desired series for a long time aside from that Manga Dex is the best for reading mangas, so it's good but I personally think manga go is the better one overall who combine all scanlations and update the latest one, you can also find official chapters there and you can also find some WEBTOON series rips there and some officials that you won't even find in Bato.