Mac app promo channels?

Any other Mac app makers about? I’ve released an app and it’s got a fair bit of downloads, but what makes more excited is that users have been generally really happy with the app! I’ve launched other apps before and typically response has been more mixed, so something must have gone right with this one. Any tips on where to promote more and get more users? /r/macapps has so far been my favorite, got some users and a lot of great feedback on early versions that really helped improve it. Site for app is https://owlocr.com