Taiwan Baseball Caps and Cards

I’m heading home for a visit soon, and would like to bring some things to my grandfather and my nephew, both huge baseball fans. Unfortunately, I don’t have time to make it to a game before I go, so I’m looking for non-stadium places where I can buy baseball souvenirs. Willing to travel a bit, but anything in Daan district would be helpful. So have you seen these things around?

Gift Shop of the Brother Hotel - Nanking/Fuxing

Thanks! I recall seeing them in the window there before, now that I think of it. I’ll pop by this week.