Affiliate Marketing Secrets

Hi – I own a store which is about to expand and will now have quite a large section I can dedicate to be a bit more of a ’boutique’.
Could I ask your opinion on which niche handbag/accessory manufacturer you would love to see in your local high street boutique? I dont want anything that can be too easily found in any old store (ie John Lewis!) and it cant really be high end stuff either like Gucci etc. Lovely leather, designs and not stupid prices.
Just to give an idea one brand that currently does really well is Blondie Mania. Longchamp is interesting me too at the moment but not sure if they would go in an independant like me.
Any ideas would be greatly appreciated and if you get in touch i could give you a good deal on something! If you’re nice!
Thanks