Good sources for your research are critical. But how do you get the best quality journals? Scimagojr.com is a good point to start, it is providing a huge u to date database of ranked Journals on all science disciplines. So let me give you a quick introduction how to use SJRs journal rankings.
Start by navigating to https://www.scimagojr.com
Click on JOURNAL RANKS and select on the next page your subject areas as well as subject categories on the drop down boxes at the top of the page. Most of the time you will be interested in journals, so you should also select on the drop down “All types”, “Journals”.
On default all entries are sorted by SJR descending. On my experience this contains most of the times noise and I prefer the H index. So click on the H index column to sort it descending.
Now read trough the journal titles and select one which sounds like it fits on your research.
After selecting one journal you have an good overview to get additional information such as the scope and some “performance” indicators.
The quartiles plot tells you how good a specific topic is ranked by year, your target topic should be on Q1 (green).
SJR is a more complex weighted ranking by citations.
And a plot of total cites and self cites is also included. It is always better to have a high ratio of total cites to self-cites, that means the journal has attention from outside of his own journal.
Basically that is all you need to get started with selecting or evaluating journals.