Based on our record, Newsletter Spy seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I would suggest using Newsletter Spy to get data about some top newsletters and subsequently add some to your site. Source: about 3 years ago
LetterWell - Buy and sell ad space in email newsletters
Promotehour - Free list of 1100+ media outlets to pitch your startup
PEAR - Connecting newsletters and advertisers 🍐
Press Hunt - Press Hunt saves you hundreds of hours by aggregating data on almost 400,000 journalists and reporters in one place, complete with their writing interests and contact info.
Submit.co - Find where to get press coverage for your startup
Submit Juice - Free and curated list of startup directories to promote your new startup. We manually post your startup to more than 150+ relevant directories and blogs to help your startup get discovered.