Skip the logos. Look for full-grain leather, solid hardware, and a trolley...
https://gunnerawsh736.cavandoragh.org/the-art-of-the-organized-briefcase-ending-the-charger-tangled-mess
Skip the logos. Look for full-grain leather, solid hardware, and a trolley sleeve. A bag built to last should feature YKK zippers and at least a 5-year repair warranty. Your briefcase should handle a 15.6-inch laptop without looking like luggage.