I used to read comics with an RSS reader. Then I started using IFTTT to add them to my Pocket. Now, I've transitioned all of the comics that I read to be emailed to me once a week. Each day of the week, I have two emails (since I read 14 comics at the moment) in my inbox. Each email contains the last week worth of posts. It works out quite nicely. Also, if you don't know of a good RSS feed for a comic, ComicSyndicate is a good place to look.