Best SaaS directories for B2C??

First time bootstrapper here. I'm trying to get MotherFlocker out to the masses. I could go post it on Reddit or Facebook in the backyard chicken groups. But those are really great communities because they don't want people selling to them in the community.

So what are my alternatives?

I could run ads. But ads are expensive. And there is no upper bound on cost per acquisition.

I'm happy to pay for acquisition, but I want an upper bound on that cost. This is where something like AppSumo shines. They are kinda slimy. But they guarantee that my acquisition cost is some percentage of my revenue. I got rejected from AppSumo last night.

Does anyone know of any high quality B2C SaaS directories? I'm happy to create discount codes so the directory makes money, so long as they can drive traffic to me.