There are hundreds (if not thousands) of online lessons available to you.
if Classical guitar is your goal first learn the “Classical” position…instrument on left leg and then find an online instructor. then practice,practice,practice.
DO NOT do what I did and “teach” yourself….you won’t recognize bad habits until it is too late……and for me it is a lifetime of bad habits
if you fall in love with the guitar, you will find a friend for life…..a friend that will forgive your bad habits.