tenforums.com
In short: Getting listed on Ten Forums is free. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Answer Windows 10 questions and list your site on your profile.
Answer Windows 10 questions and list your site on your profile.
No advertising in threads.
Open the submission page on tenforums.com and complete its form — that is the "Open submit page" link at the top of this page.
No advertising in threads.
Priority sets the band — this one is later. Cost (free) and effort (moderate) move it within that band, which puts it in the long tail tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.