I did my research – The two top contenders were PaperGuide and Afforai.
I went with PaperGuide. Key Reasons:
1) I'm principal scientist for my business – I need access to top notched scientific papers and imo PaperGuide has an edge here.
2) the Tier 2 Humanizer is going to be helpful to simplify communicating complex subjects
for my executive audiences.
3) It's well thought out for managing complex research projects
4) Last and not least… I've touched base with their Support and found them responsive and helpful.

This was a review I found on YouTube I believe you too will find insightful!
https://www.youtube.com/watch?v=br28mZd-Eyc