Best way to unload bulk cards?

[Bigdog1206]

I used to have a great hookup with three local orphanages but I have overloaded them.
Now, with a thriving online business and a brick and mortar, we are getting overwhelmed with bulk.
Does anyone have any good ideas on the best way to move bulk? I don't necessarily need to get paid for them, but unless it's for charity I'd like to recover the shipping. At present, I'd guess I'm talking about 100,000 - 150,000 cards dating back to my set collector days.

Appreciate any thoughts.

 

[mm1sub]

My best guess would be to maybe post them on Facebook Marketplace. If you are just trying to unload them for pennies on the dollar then that may be the best way to go in my opinion.

 

[bfd13]

Donate them to middle schools.