Start with bodyweight stuff, pullups, pushups, squats, you can look up bodyweight routines online. Once you get bored, if you think you like the strength aspec

Start with bodyweight stuff, pullups, pushups, squats, you can look up bodyweight routines online. Once you get bored, if you think you like the strength aspect of it, buy a power rack with a pullup attachment, a bench, a barbell and some weight plates. No shortage of those on second hand marketplaces. With those items there is nothing you cannot train strength wise. Look up powerlifting programs and start your journey. If you think you prefer the bodybuilding/aesthetic side of things, do the same as above but also get some dumbells for isolation stuff, and again look up programs online. I will say that long term a gym is pretty good for bodybuilding, you just have more variety of machines that target specific muscles. But for strength you can honestly do your whole strength program at home with a barbell, rack and bench. If you find it all boring but still want to be fit, then sport will have longevity. Bikes, team sports, climbing, there are so many options. Callisthenics is surprisingly popular lately and builds great muscle while still being fun.