I can’t speak for the OP, but I like Hugo better than Gatsby as far as static site generators go. I think Hugo is easier to use and is a lot faster at generating sites. Gatsby does more than that, so it may be a good choice when you need something more than a static site generator; however, if I’m going to have to dick around with programming anyway I’d rather work with anything other than Node/JavaScript.

EDIT: I forgot to mention Zola, which I like quite well as far as static site generators go. It doesn’t have the support for multilingual sites that Hugo does, but its templating is much nicer, I think.