Determine if you want to buy bank rolled or customer rolled cents...
buy rolls of cents wherever you go...bank, convenience store, grocer, anyone who has a roll...buy them from time to time...you'll find what you're looking for in variety and error relative to how expansive your knowledge about them is.
I've found that using just one source for (customer) rolled coins in our small town means I'm getting rolled coins from fewer people at that source.
I like bank and customer rolled cents.