Her is a simple one t watch out for. Maybe grab a copy or two of (I did when it hit the stands). Superman #10 which features the now iconic image of Superman and Superboy squaring off with Batman and Robin (Damian Wayne). The book has started to sell for more than cover price.
Recently closed sales of Superman #10 Cover A have been selling for as high as $4.99, I know it is not a huge profit, but for a book that you can still order online for $2.69, it is not a bad start. The B variant, which may be an anomaly, as most still sell for around cover. The book has sold out at Diamond and is going back for a Second Print. The Second Print will probably have a small er print run and could be worth the pick up as well.