ai. like have them take your language of choice, your templating of choice, your architecture of choice etc and spit out something. they've seen enough that it can pretty much oneshot something relatively simple.
edit: i mean have the ai write the generator, don't use it to actually generate pages...
This is the right answer to the vague question of "best".
I started with an empty repo, wrote the first half of a README describing my decision-making process in choosing a static site generator, and conversed with an AI to finish the decision and set everything up.