Genesis cart list

I've taken it upon myself to collect a copy of every single genesis game released in north america. As you can probably tell, it'll be just a wee bit could somebody help me out with a cart list? I've found normal cart lists with the games and their publishers, but I haven't seen one yet that can tell me the rarity of a cart, which matters because I don't have the cash to buy every single cart I find in each shop.
They also have other kinds of listings as well, but since you already have your hands full, better stick to the MD first