This right here. When I first started out, I bought a combo pack like thisFor you and others - Don't be afraid to try more brands & types of blades. It seems like it's tough to go off of someone else's experience with a blade because everyone's skin & hair combo is different. They're so cheap and interchangeable, trying a bunch out is easy.

DE Blade Sampler Pack, Extended
This selection of Double Edge Razor Blades includes our most popular blades. Shop now to find the one that works best for your shaving routine!
I ended up sticking with Feather but the Gillete 7'0clock were also good and seemed to stay sharper longer. Now I just buy a 100ct. of Feathers for around $30 and that will last me around two years if I swap it out weekly. This is similar in price to 15 Mach 3 cartridge's but the M3's do last longer. What I've found is that I spend roughly 1/3 the price for safety razors, I get a closer shave, but I have to be more careful(especially on your head).