If you don’t want to code it, give Publii a look. Otherwise, my go-to is Eleventy, simple and clean.

If you do go this route, the best way is to make a fork of the main Umami github repository, then link that to railway. When you want to update, you can just sync new changes to the repo, and railway will rebuild your instance.

I’m running Umami on Railway (so not self-hosted), for two small websites. Works pretty well. I think Railway changed their pricing, but I’ve been grandfathered in with a free plan.

Edit: all of my websites are also on Netlify.