The tooling around Fortran is very similar to C. The debuggers are the same, you can typically use ctags of some sort for navigating between subroutines etc. ac

The tooling around Fortran is very similar to C. The debuggers are the same, you can typically use ctags of some sort for navigating between subroutines etc. across all files, and then you can add in a compiler-editor integration that checks for syntax errors at every save. There are also a couple of Fortran REPLs out there, the most promising is probably LFortran which is only in alpha stage of development but has Jupyter integration and will be the next cool thing I think.