If you're curious, you will have noticed many brand forums here on the site with thousands of posts with descriptions, photos, and user experiences. Have you read them? If you want to know the universe of bag shopping, most of that info is helpfully already here on TPF.
For others to chime in, we have no information on your taste, budget, preferences. All of that affects the ratio of leather/quality/price that works for you. Examples: Would you pay no more than $200, or no more than $2,000? This matters in answering your question. Would you buy an expensive bag made in China? To some it's fine, to others it's a deal breaker. And so on.