Best free animations software for youtube

Any one have idea for creating animation videos for you tube and social media for free, I tried videoscribe and powtoon .
And last but not least what is the best voice over software. For making YT videos, I have seen some bots read the script for YT video . I tried some but not that effective.

Waiting for ASAP responses

I make all my animations from a personal extensive library of custom objects I created ahead of time. As for people with no talent or motivation, you can try the shitty "paid" / free solutions for cpa spam. You won't get very far because quality matters now, where spam does not.

Fiverr

try after effect video editor
is very good for make youtube video