Excuse my asking.. why do you want slim pedals? Majority of them use the same or similar flimsy axle (which if you look into them, you will see bends SOOPER easy.) The lack of material sketches me out, I feel like the body would just break off the axle over time. I see absolutely no advantage to slim pedals, only disadvantages.
If you refuse to run anything other than slim, I would suggest going for PCs like the Premium Slim PCs or Ezra Flats. Add metal pins if you want more grip. Because in all reality, the axle will bend way before you break the pedal body anyway. No point in spending $100 on a pedal with a flimsy axle when you can spend $30 for practically the same pedal with the same axle/bearings.
I believe Trailmixes/JCPCs are the best option for pedals since they have the over sized axles made to take a beating. Really beefy pedal bodies too.
Or, look into some slimmer non-slim pedals like the Fly Rubens or wait for the Odyssey Dugans (look a bit slimmer.)
Refs : SnM An1mal, GThompson121, Chuck8273, blizzbikes, bmxsteve99, kevin.brock.338, zinum, Brian_Griffin, billyhandyjunior, riverM, tomdon
Instagram : @timhankinsbmx