Pros and cons of publishing in a journal not indexed in SCI but under ESCI? A Journal is indexed in Scopus and Web of Science. But under Web of science it is under Emerging sources citation index and not under SCI or SCI expanded. What are the pros and cons of publishing in it if you are a serious researcher looking for phd admission? Its not predatory for sure and no charges for author whats so ever. Its also from a reputed publisher. The feild is applied mathematics
I'm guessing that where you are in your career it matters very little. The important thing is to get published in a reputable journal. I also doubt that experienced scholars worry very little about such things. 

Pick a journal that seems appropriate for your work. Send it off. Then write the next paper. 

And if you are not yet in a doctoral program, then publishing is a big win, no matter where, as long as the journal is reputable.