Been looking one for over a week now, eto mga nakita ko:

around 1k-2k - brands like Hawk, Ilustrazio
around 2k- American Tourister (my choice if wala pa din ako makita, safe talaga laptop coz naka-angat yung support pouch in case ma-drop ang bag, di tatama ung lappy at daming pockets/sleeves to put some etc.)
around 3k plus - Samsonite