So the question is of an aesthetics "best practice" type. I know that I shouldn't use Euler math fonts with the standard Computer Modern, and I'm struggling to find a suitable typeface where I can use Euler math without looking unprofessional.
My documents usually stay as PDFs, meaning they're never really printed on paper, rather they're looked at on screens, where the display system takes advantage of font scaling, etc.
I'd like to use one of the typefaces that come in LaTeX repositories like Texlive or MikTex, I can probably get a custom font later when I really need to.
The main problem is really finding a main font, to which Euler is a decent math companion font. I'm using XeLaTeX, if that makes any difference.
I've seen someone mentioning a set of packages which combine sets of these into entire presets, however I can't find them anymore. If someone could link me to those, that would be great, too.