Although Facebook recently has cracked down on Pay It Forward groups offering insulin, many people still offer their extra insulin, cgm's, pumps, and supplies, usually very cheaply or free, on Facebook, Craigslist and other websites.
On the T1D Facebook groups, you can search all posts and/or post a request. FB groups often have a prohibition on offering/requesting insulin, and this may trigger a warning or even expulsion by the group administrators/moderators.
On Craisgslist, you can performa national or regional search for anything using an app like Csmart.
Of course, we don't recommend getting insulin from non-pharmacies, but many people have and do.
If you have had good, bad or neutral experiences getting insulin from people on the internet, please submit them.