corsair cv450

I don't know which power supply to choose, i read some reviews saying that the Silverstone st50f is good, it's a little bit cheaper than the cv450, but Corsair seems like a reliable brand, I'm having trouble choosing since i want to save some money. I'm planning to buy an i5-3570, gtx 750 ti...

I'm still a newbie when it comes to building pc, and I just built my first pc. I use a Ryzen 3 3100 using MSI B450M Pro-VDH Max motherboard, HyperX Fury 8GB (2x4) RAM, Corsair CV450 PSU, RX 550 4GB, Adata SSD 120GB, and Seagate Barracuda 1TB. When I first turn on my pc, all the fans are working...