If you are pursuing option 1, then you will want to use an automated service for the reasons mentioned in the article. Follow the process in the article to see which registrar the domain name is located at. If it’s at a Auction House like GoDaddy, NameJet or SnapNames, I believe they publicly share if there is a backorder on a domain name but not who placed that backorder. (Any interest in a domain name may be enough for someone else to place a backorder, thereby driving interest in the domain name that may be visible to the registrant.) So if the domain is at a registrar partnered with one of these companies, then you’ll have to monitor it manually (via calendar entries based on the whois expiration data) to maintain your distance.
As mentioned earlier, finding such expired domains can prove to be a daunting task especially if you don’t have a tool to make that process a walk in the park for you. Instead of spending your time searching for tools that you are not even sure will help you find expired domain names with lots of traffic and backlinks, how about you try a game-changing tool integrated into Webfire 3.0 software called Expired Domain Finder and make your expired domain search a lot easier?
From a most basic perspective, any website or platform on the internet that allows people to post a link which goes to an outside site is a potential source of traffic. However, traffic sources are not created equal. Some traffic sources are very problematic. For example, if you were to go to social media sites and just share content and links, chances are, somebody at some time will object to that practice. They would say you’re spamming. It's very easy to get your affiliate account shut down because people complain. Similarly, you could be blogging for what seems like forever and fail to get much love from search engines.
We do not only have Expired Domains, but you can also find lists of Deleted Domains for a lot of TLDs. Deleted Domains or Dropped Domains are available for registration and can be picked up for just the normal regfee at your preferred domain registrar! All Domains have the typical SEO relevant data, like Number of Backlinks, Archive.org Birth Date and a lot more.