Guys, it’s not so difficult to find them. See the documentation/gallery. For example here
https://www.generic-mapping-tools.org/GMT.jl/dev/gallery/tables/
and several other examples nearby.
https://www.generic-mapping-tools.org/GMT.jl/dev/proj_examples/
There is also the historical collection but I’m not sure it all works. I lost the scripts file and possibly many examples (that are here more complex) may need re-work.