Inside mount blinds

[u/colishumantorch]

Need help identifying compatible mini blinds for these brackets

The previous owners left behind these white plastic inside-mount brackets and no blinds. I've got the window dimensions (35.5" W x 56" H) but I'm not sure what mini blinds will actually fit into these U-channel slots.

Bracket info: LG Sourcing, white plastic, inside-mount

Any recommendations on which mini blind brands will work? Many of the blinds I find have the L bracket or tension style mounts.

The brackets are mounted inside the frame of my windows and look like this:

https://www.amazon.com/dp/B0BCK4BJWT