There are many papers published in online journals, some are Taobao shops, and some are individuals. This can't be generalized, just like someone who has just done online business before. They may or may not be reliable, but it's hard to tell them apart, because most people don't know the knowledge of this journal, and some just look at the price. If the price is low, they feel reliable, so it's easy to be tricked into publishing fake journals or getting deposits. I suggest that you study the knowledge of paper publication before publishing it. You can go to Tao Tao Paper Network. There is a lot of knowledge about the publication of papers, which is more practical.