Hi @Ecloudic_Stars, there are 3 methods I know so far for finding expired web 2.0 domains bro...
2) Expired Tumblr Hunter
I'll share the steps to find expired Tumblr web 2.0 assets using the 3rd one... first, you need to install SEOquake plugin on your Google Chrome browser.
Then use this search query on Google:
site:tumblr.com/profile + “keyword”
You can use any keywords related to your niche, I randomly used "Dogs" here.
Then install "Check My Links" plugin as well. Open each Tumblr profile and then access this plugin, you'll find this small popup:
Make a note of "Invalid Links", this is where you'll get your expired Tumblr blogs. They'll be highlighted in "Red" color here. This is going to be very time-consuming, but it works fine!