Which brands are good for bags?

I'm in the market for a new bag, but I'm not sure which brands to consider. Could you please offer some suggestions on which brands are known for their quality, durability, and stylish designs? I'm particularly interested in bags that are versatile enough to be worn for both casual and professional settings. Additionally, I'd like to know if there are any emerging brands that are worth keeping an eye on. Thank you in advance for your help!