It is often the case that the proposal of a specific idea or approach to a problem (or whole field of research) triggers a sequel of papers discussing and extending this idea. In this sequel there are papers (probably two or three) that are established as "basic", as points of reference. Each one of them may be usefull in more than one directions of research. However the whole set of "basic" papers is characteristic of the discussion.
In this perspective the most efficient way to follow an approach or school of research is to search for articles that cite these (two or three) "basic" papers.
However, according to this question this option is not available, but one has to write some Python code.
That was a year ago.
Is there any new user-friendly alternative?