I won't say that boss is a famous brand for wah pedals..
Wah pedals generally comes in two forms, with an on/off switch (Dunlop), or switchless (Morley / Ibanez). I myself cannot get used to the on/off switch of the wah pedals, so I use a switchless morley
Try out:
Dunlop Crybaby (any with a switch: standard, slash, dimebag, etc)
Morley (any switchless) / Ibanez weeping demon
sound wise some are milder, good for sutle low gain playing, but might literally have no effect for high gain. some can cut through high gain very well, but their tone range might be too extreme for subtle stuff. Just try some or browse the youtube for samples