What marketing site platform should I (non-technical) use to market/sell my SaaS app?

While my developer works on building my app, I thought I could try to get the marketing site up. Something super simple, one page with links to "Signup" and "Login". (Like Storemapper.co but even less content than that.) Squarespace and Wix don't seem right browsing the templates, and Wordpress seems a little intimidating as a non-technical person, I haven't tried to download but the themes look nice. Maybe it's not that hard?

Any thoughts on the best tools to get this done simply yet have it look good?

So fired up I found Indie Hackers, thanks Courtland and cheers to everyone on this site helping to make this such a valuable resource!