You mean a new journal for every scientific field? That's helluva lot of journals. Then, you need to attract people to send the papers there. There are countles

You mean a new journal for every scientific field? That's helluva lot of journals. Then, you need to attract people to send the papers there. There are countless local journals that mainly attract local authors now, and those are a joke when they are not outright junk. To publish even a half decent journal, you need to attract researchers from all corners of the world to send you their best work. How?