I'm one of those undergrad students :-) What are the better, more current, ways of prepare, say, a thesis document with maths, pictures ?
\usepackage{newtxtext}
\usepackage{newtxmath}
1. https://resource-cms.springernature.com/springer-cms/rest/v1...
FWIW, for non-math, single column text, LuaLaTeX + plex-otf [1] is my current favourite combo. Reads well both on screen and on paper. But if you are heavy on math, you will need to setup a second font to replace CM in the math formulas. You can also scout the top conferences/journals in your niche (i.e. where your prof. publishes) and pick a template you like. The templates are typically linked with every CfP, and you can expect that they will have worked-out the common cases for their field.
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[largesc]{newpxtext}
\usepackage{newpxmath}
\usepackage[supsfam=newpx]{superiors}