Fans struggle to find all official merchandise for their favorite shows, games, and artists across different company stores.
Create an aggregator that indexes and categorizes merch from licensed vendors. Earn commissions on referrals to official stores.
Start with Japanese pop culture where merch culture is strongest, then expand to other markets.
Initial version could simply be a curated directory with affiliate links before building full ecommerce features.
Biggest risk is rights holders seeing this as competition rather than promotion - requires careful partnerships.