What do people use for a SaaS website these days?

Emphasis on website, I already have a webapp stack.

I've used Next.js and Vercel in the past, which is great, but also feels overkill 😅. Honestly, I think I might  just go for some WYSWIG solution. Heard good things about web flow... hmm 

 I could always just serve assets straight from the application web server, but:

not great for SEO
hard for others to edit