This is the one I got https://www.amazon.com/ELUTENG-Heatsink-Double-Sided-Aluminum-Conductivity/dp/B07PS9S2DZ/
Use the one with screws and not the rubber bands.
I just got this really cheap one which has some good reviews https://www.amazon.com/ELUTENG-Heatsink-Double-Sided-Aluminum-Conductivity/dp/B07PS9S2DZ/
Went with this one. Fits perfectly with screws not rubber bands. I left off the slot cover but it would have fit over top of it. https://www.amazon.com/gp/product/B07PS9S2DZ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1