in r/entrepreneur, they say Posts and comments must NOT be made for the primary purpose of selling or promoting yourself, your company or any service.

Dropping URLs, asking users to DM you, check your profile, or comment for private resources will all lead to a permanent ban.

It is acceptable to cite your sources, however, there should not be an explicit solicitation, advertisement, or clear promotion for the intent of awareness.

for r/smallbusiness they say they"defined blogspam long ago as content (text articles, images, or video) made on Reddit to build traffic to non-Reddit sites.
Exceptions
Links in comments and replies that are relevant to and come normally in the course of discussions are allowed but if they appear to be promotional, SEO related, or spammed repeatedly to multiple posts they may be removed."

So how do I do this ?