HQ DA50 + sites required for guest publication

Hi all,

If you have access to high authority sites and can offer a quality guest publication service there, do not hesitate to contact me as soon as possible.

I need sites with real traffic, good Alexa and social presence. If you can provide a good list, I will be a regular buyer.

NB: People who have access to sites such as Forbes, Inc., Mashable, etc. They will be very appreciated.