Here are some ideas for your character’s bodies! I took one head and tried it on several different bodies. Copying and pasting a head over and over helps with coming up with a body. If I had to pick one, I’d probably go with the one in the upper right corner.
Don’t worry if none of these appeal to you. I’ve got some links with some wonderful tutorials that will help you further your art!
Luis Escobar has some wonderful tips for making the perfect character body: http://www.thedrawingwebsite.com/2017/06/07/cartoon-body-formulas/
Proko has some great tutorials for the bean method of drawing. If you can draw a bean (or something like it) then you can draw a body! https://www.youtube.com/watch?v=0660Fuih7qo
Drawing the Head and Figure by Jack Hamm: https://www.penguinrandomhouse.com/books/272012/drawing-the-head-and-figure-by-jack-hamm/9780399507915/ (This book is generally under $17
Andrew Loomis Figure Drawing for All it’s Worth hosted by archive.org: https://archive.org/details/Andrew_Loomis_Figure_Draw