Eleventy, of course :-)

But why are you looking for alternatives already?

Dropped eleventy recently.

Disliked the templating solutions, the messy documentation, the loss in momentum, and liked a lot of the stuff (especially the tooling and principles) in astro.

Also strongly disliked how political eleventy got.

I just wanted a website, not a an internal debate about what I am potentially being absorbed into. I can vote, and spend money on donations, I don't need to enact change through my tech stack.

I'm not! Just preparing myself for the worst-case scenario and creating some bookmarks meanwhile.