I found this app https://moat.com/advertiser/hoot-suite when researching how to design proper ads for facebook and other platforms. It's pretty useful because it may show you the history of your competitors' ads.
And based on that you may figure out what works best.
FINALLY! I've been looking for something like this forever. Thanks for sharing 🙌
you're welcome
This is indeed a cool resource. I would also recommend the content suggested by Buffer and Later. @mfarajewicz
Thanks!