I’ve used most of the options for this and regardless of the tool I do a terrible job of actually coming back and reading anything in them. Instapaper would probably be my vote for the one I used the most though, connected to my kindle it was nice when I used to travel and could catch up on stuff on the plane. These days I use Inoreader for consuming feeds and it also has a good read later function.

I was initially thinking Huginn, but it doesn’t seem to have as much activity around it. You like it, plenty of flexibility?