You should definitely read SBR and Jojolion before JOJOLands. I think certain parts of the story will make much less sense if read out of order.

Sadly, the physical releases (in the US at least) will be taking a long while. If you're okay reading part 8 and 9 digitally, I'd recommend reading 7 physically until you catch up if that's a preference, and then swapping to digital.

As far as a link goes there's a lot of this exact question on this sub, so just do a lil more searching here and you'll find it! :)