>>725100641
Starting Strength is the usual one, but honestly nigga, if you're fat and untrained, the most important thing is anything with consistency. Lardasses like to overthink things, get themselves on an unsustainable diet + plan that takes 3 hours out of their day, then use it as an excuse to drop it after less than a week.
10 pushups a day, 10 situps a day, front plank until failure, jog around the block, repeat twice a day for a month, then you can move on over to the weights (which usually boils down to the above but more of them + squats, deadlifts and pullups). Do that.
Form is important, because the human body is actually a craft sly piece of shit that will try it's hardest to event offload weight onto a combination of the best muscle groups for the easiest time, instead of the focusing on shit you want to train (you will feel it when you've got good form, easy xample is a situp when you curving your back and look around, and a situp when you hold you back and head as straight as possible). If you start to lose interest, skim /fit/ 'log for a few minutes, get some motive in you (eventually you'll find some autistic dudebro quote that'll stick with you and never leave and give you infinite motivation forever onward) LIGHTWEIGHT BABY
Don't forget that loseing weight is in diet, gaining muscle is exercise; if you just want to drop 100lb, start by cutting out the twinkies instead of trying to burn off a full twinkie of energy. wagmi brah.