My little brother has gotten me reading manga.
I'm mostly using the Shonen Jump app (which is a surprisingly good deal) but I don't have a good tablet at the moment, so I'm on my phone.
The original run on dragon ball was easy to read on my phone.
So far, Super is not.
(By "locally" I mean "within 60 miles"
No bookstore, no big box store, no collectibles store within 60 miles of my home had volumes 3 or 4 in stock.)
Have you tried your local library? Which honestly may be something of a crapshoot, and you might have to wait for it, but a lot of libraries have a surprising amount of manga nowadays.
Andrew (Television Executive)
DapperDinobot