Ask HN: How to find Shopify app beta testers?

Hey HN,

My friend and I are exploring some Shopify app ideas. We wanted to talk to Shopify merchants to get feedback, but have had a hard time getting anyone to respond. Things we've tried:

1. Cold emailing stores that have downloaded similar apps. 2. Posting in FB groups (get deleted usually) 3. Posting in r/Shopify (no responses) 4. Posting in Shopify Discord (mostly devs)

For those who have build Shopify apps, any tips on how to find people to get early product feedback?