Two companies create journal ranking products - Elsevier/Scopus and Clarivate Analytics/Journal Citation Reports. The library has a license to Scopus. The Scimago Journal and Country Rank include the journals from the Scopus® database and are free to access.
Try not to focus on finding one “perfect” subject filter for your topic when searching for journals. You may have to look through a few categories to capture the interdisciplinary nature of your research topic.
Some journals have lower rankings not because they are “bad” journals but because they have a smaller readership, are narrower in scope, etc. They are therefore cited less and have lower impact factors. If a journal is relatively new, it may have a lower score because the impact factors are based on times cited, and there hasn’t been a lot of time to be cited. So, the rankings are a great starting point but don’t get too worried about the score. Titles in the top quartile are probably fine for your initial review.