There are many designer suits that are considered to be high-quality and fashionable. Some well-known brands that are known for producing high-end suits include Brioni, Kiton, and Canali.AVALIABLE NOW. These brands are known for using premium materials and craftsmanship to create suits that are stylish, comfortable, and long-lasting. Additionally, there are luxury designer brands like Armani, Tom Ford, and Ralph Lauren, are very popular among celebrities and businessman for their sophisticated look. It ultimately depends on personal taste and budget.