Checking the uniqueness of a new journal's name I am part of a group that wants to publish a new journal in the field of economic sciences. I am coming up with the journal name and will then register a domain in that name. But I have to be sure about distinctiveness of the name.
How can I check that the journal name has not been used by others earlier? Is there another method except googling?
Consult scholar databases such as Scopus, Web of Science / Journal Citation Report, Scimago...

(This in addition to googling, of course, not instead of it.)

If it's neither on Google nor on these databases, it's effectively like it has never existed.

Another thing that you may want to check is that there is no journal with the exact same name but in another language. For instance, you don't want to end up with a journal called "Annals of Mathematics" and another one called "Mathematische Annalen"; that's just unnecessarily confusing for German speakers, right?