I am coming to the end of my PhD in which I have been working under an NDA and not yet published anything directly from the thesis itself. Pretty soon we will be able to publish the work, and I am eager to get my chapters out there as papers.
I had eyeballed a journal within my field (a journal that I use/cite heavily) that I consider to be relevant and would give my paper great exposure to the people working in my field. I suggested this journal to my main supervisor, but they were dismissive due to a low impact factor of 2.31. They instead suggested going for more of a broad, catch-all journal with a factor of 4.57 that covers a lot of topics in my field albeit (in my opinion) not very thoroughly. Typically papers in that journal are not technical - the paper I want to publish would be technical and have my code/algorithm published alongside the manuscript for reproducibility.
So my question is what to do? The paper is primarily a new method, but also has a bunch of case studies alongside the method that tell their own story and are relevant in their own right.
If anyone is wondering, I am in Earth Sciences/Geophysics.