{{company}} looks interesting, and we would be interested in potentially reviewing it and advertising it on our websites.
We're a [describe your company and audience, citing traffic numbers and demographics]. Our biggest sites are [Site 1] and [Site 2].
If you could send us a sample, then we would be happy to write a review. Here's an example of a review we already did: [link to review article].
This would allow us to get started with promoting your products on our sites.
Let me know what you think!
Thanks,
[Your name]