🚀 go-pugleaf

While there are many possibilities, you might also want to consider
TeX, which is *free* (in the sense that it's bundled) and is capable of 
making virtually any kind of table, including fancy rules, equations, 
mixed entries, a wide range of fonts, etc. etc.  

The basic rule of TeX is that making the *first* table is hard, but after
that they're all pretty easy as you just recopy the same format.  There
are also several public domain macros specifically designed for making 
TeX easier (I've not used any of them, just know they exist).  I have a
couple of basic "templates" which I always use, and would be glad to offer
them to anyone interested, but with a little thought you could probably
write a far better one.

Hope this is Helpful 

tom