Yo guys!
Sometimes coming up with new angles can be frustrating, especially if you're selling all the time the same product. It drains you out. 
The following approach helped me build two angles that made some really nice profit recently.
The idea behind is based on using social signals from various sources (Instragram, YouTube, ...) and came with with a creative or an angle that has higher chance it will work, because social signals are this (likes, views, upvotes).
For an example, let's say we need some killer headline for our landing with angle child motivation.
Here is how I write an headline:
1) Find TEDx talk on YT related to child motivation
2) Sort them based on video views/popularity
3) Here is one example video with headline The secret to motivating your child
4) In many cases, TEDx speakers kick off with some great headlines/questions or something that keep their audience engaged.

The idea is to use their "angle" to hook the users on our own landing page.
So, in this example ... here is the Headline & Subheadline for my latest landing-page that's killing it right now.
Headline: Would you like to know exactly, how to motive your children?
Sub-headline: Only 2% know parents know how to motive their children. This XYZ will help you!
>>
I'm going then even further with using key-visual on the landing page based on the TOP posts from Instagram hashtags, but this can cause you some legal claims.
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Anyway, so far I used this approach twice and it worked both time. It could be luck, but I'm sure social signals can increase chances that targeted audience will love your content. 
haha this is a great tactic!
Needy "hack" man, love this!
Brilliant, love it! Thanks man.
Great tip Timotej, yet again! 
Turning youtube into a spytool basically, that's really smart. Find what people engage with and what attracts the views, then copy the approach or the copy itself... briliant 
Hahah I'm glad that you like it!
When you're expert at procrastinating with new agles ideas like pop into my head. 
Great, tip! We will definitely try it on our products 