Top brand for 750w

I have ryzen 7 5800x3d Rx6800xt Msi b550 pro gaming plus X2 8gb 3600mhz Thermalright Peerless Assassin 120 Se 1tb sdd 1tbhdd

Cause my coolermaster mve850 v2 fully modular are not working because of when I on my pc automatic off and on and off

PS:prefer psu gold below not above Thank you