I’m partial to https://reactfordataviz.com because it’s the best one I ever made and reaches 7th on Google for important keywords even tho it’s a sales page.

I like it because it loads fast, isn’t very designed, and focuses on decent copywriting instead of A/B testing quackery

And it converts well at an average of 50 cents per pageview.

Took about 4 years of customer research and conversations to arrive at that copy.