Hi, and sorry for the delay in noticing and approving your pre-moderated post.
(it helps not to put a link in the first few posts, but of course new arrivals don't know that).
Though it seems unusual to American customers, it's conventional for SIMs on European and most networks in the world to have free incoming calls in their own country, so choose any Swedish SIM
You can find info on Swedish networks via
this link, or next time via the National Operators link up near the top the page
Some have cheap foreign calls, such as Halebop and Lebara, but I'm not up to speed on data packages available.
You can click on the network logos on the page to go to the networks' own sites, which might help with data packages.
You might use a service like Localphone, as mentioned in the article you found, to have a US number which you forward to the local SIM cheaply