I've played metal/hardcore for awhile. Some of my favorite snares in no specific order
7x14 Trick (aluminium) w/ S hoops 6x14 Trick ( copper) 5X14 Trick Kodiack 8X14 Tama G Maple, 8x14 Tama Bellbrass ( absolute fav!)
Snare is such a personal taste thing. Even when you can try them out, different tuning and reso heads make such a huge difference. What kinda sound are you looking for? For example when I think of the perfect snare I have that dry woody deep knock sound from Isis Oceanic album in my head and if I were to buy a Snare I would use that as a reference.