Working out: what should I start doing?

Hello everyone,
I am 172 cm tall and weigh around 144 kg, I used to work out in the past and lost a lot of weight and gained some muscle weight too, I have stopped going to the gym since 2018 and with covid 19 outbreak things got worse and of course I gained lots of weight again, almost all the weight I lost which was around 30 kg :( , I went back to dieting now and I am starting to lose weight again, but I was wondering whether I should start working out now or wait t till I lose more weight, and if I start working out, what kind of workouts should I start with?
PS : I have no medical conditions or any physical injuries

Thanks in advance

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