Ooooooh boy.
In terms of bang for buck, you absolutely cannot beat the Tat PCR. You can find them under $3 online, and they're wonderful.
I love the Papas and the Lat44 Maduro, but at around $6, they're twice as expensive. The BAITFISH can be had on the monster for around $4, and even less if you go through ebates and use a coupon. Great deal on some decent sticks, but they're noticeably less aggressive than the Papas. But they do pack in that hot cocoa flavor.
Another one that you might look at is the illusione Rothchilds. They're a short robusto, so you get a thick smoke, but only $4 and fantastic. Dark, rich, and creamy.
And we haven't even gotten into the CCs yet, where the true corona beauties lie...