If you want a more chubby one just use the | | shape
For an amab body i make a square like shape
Then i add a \ / shape, the ends connected to the square
And if you want a chubbier one do the same as in the afab body, | | shape
Legs:
First i do a rectangle, as long as I want the character to be(also add a second triangle shorter size but lazy woo)
Then i add the Triangle (THE TRIANGLES ARE BACK AAAAAAAAAAAA A MOTHERFUCKING FUCKING MOTHERFUCK FUCKERING AAAAAAAAAAAA)
When the character is more in non-sharp boots i make the end more oval-lookin
Arms/hands:
The first step is the same as the leg one (DAMN NOW THAT'S A LOT OF RETRANGLES)
Now i add the /__\ shape thing
and i add short but thicc sausages (Dont get it the other way, they're litterally sausages🙀🙀)
And that's how i draw bodies :D
You also have to practice a lot but i also reccomend looking at other people's art and get some inspirations from their drawings and watch some YouTube videos