Myself and my kids are really enjoying the Breakout Beast line, both series 1 and 2 (I wonder if I myself do more at times). I haven't had as much fun collecting anything in years.
When trying to collect figures without getting duplicates, it helps to be able to see the code on the bottom of the egg. To my knowledge, no online stores will assist with selling specific eggs.
While Amazon and other online stores that have Breakout Beasts in inventory are a dime a dozen, it can be challenging to find the Beasts (especially wave 2 where I'm located) in physical retail stores. I live in North Carolina, and even between the Dollar General stores in my area, there's only 1 specific location that carried a box of Series 1.
Here are the stores in my area that carry Breakout Beasts:
Barnes and Noble (vastly expanded toy selection following Toys R Us Bankruptcy)
Best Buy (only store I'm aware of to carry Series 1 and 2)
Belk
Big Lots
Dollar General (only 1 of 5 locations in my area carried a box of series 1)
Target
I realize there's likely variations in which stores carry Breakout Beasts, even between the same retailers in the same state, but hopefully this will assist someone on the hunt.