DE-razor I shave with a new blade every second shave and it's still cheaper than any other shaving method that I've tried. On top of that the shaving soap last for ages (literally years) and the shaving experience is fantastic if you get the right razor.
Don't go down the fancy road to start with though. I have some expensive stuff that I don't use and have fallen for a cheap razor from temu and proraso green soap. Also just a nylon brush works fine for me to lathe up the soap