MoJoPBS

What setup brand should I go with? I don't want to use multiple different brand because that's different softwares. So I was going to go with Corsair but I'm not sure what mouse to get, and their ratings are lower than razers. I have always had Razer, their decent but my current Razer Naga chroma has always been a pain. Then there's Logitech, but again... I'm just not sure. Everyone around me is telling me Corsair and Logitech is way better but I like razers software, their hardware is o.k.but I do have problems with them. And when I read the reviews for other companies it's the same problems I have with my mouse. So basically I'm just confused and scared to spend 500 on a new mouse, keyboard, mouse pad, and headset. Sorry for the essay Bois but I really hope someone can give me advice. I will say that I never see Linus using Razer, so maybe I should just yolo it and go for Corsair. By the way I'm an FPS gamer, so I play MW recently, PUBG, R6 siege, and I do some streaming. Thank y'all for the help!