There is yet another The LEGO Movie 2 polybag that has shown up in stores for you to find. The Mini Master-Building Emmet (30529) can now be found at Walmart for $3.97 each. Like with the Mini Master-Building MetalBeard (30528), this polybag is a 3-in-1 set that contains 49 pieces. You can check out Brickseek to find locations close to you that has it in stock.
Update: Seems like they are also available at Target as well.