Easy low cost landing pages for multiple domains?

I just went through the same search and decided to go with Carrd, they make it very economical overall and very easy to use custom domains, nice templates, etc. you can even add widgets for payment, mailchimp or other simple click to action stuff to make your landing pages more useful. Happy to send you a referral code but honestly it's cheap enough as is.

Amazon S3 offers simple static hosting mode

https://docs.aws.amazon.com/AmazonS3/latest/dev/WebsiteHosti...

What's your use case? I recently wrote an ansible role that makes it super easy to deploy and manage multiple websites/apps on one (or more) servers with nginx and auto renewed ssl (via let's encrypt).

I can share if you are interested, but it's a bit rough around the edges (ie. it works for me).

It doesn't help you in the landing page part, but there are many options in that space. I used Hugo for the first time last week, with a template, and it took me just a couple of days to build a full marketing website.

Google sites. They are free but they use templates that limit the structure of your page and you can't customize them.

Host on AWS S3 if static pages, super easy

Digital Ocean