Expired Tumblr Blogs have a Great Value and are in great Demand. Many of them go to google and search for How to Find Expired Tumblr Blog? Even if you know the method it will be time consuming. So you can order on fiverr
Tumblr Domain Authority DA - 98
Moz trust - 8.37
Note : The expired blogs which I am not going to provide they are not niche related but they are powerful. They have great Page Authority. But for $5 basic package Page authority will not be focused more. It will be random. So please check packages and order.
I will just give you the URL, you have to create an account on Tumblr and add this powerful Tumblr blog.