desicreative.com

This is a good article:

An excellent read on the basics of AR

Gunn 100 revealed - The most creatively awarded campaigns, agencies and brands of 2017 Ad campaign 'Meet Graham', agency AlmapBBDO, network BBDO Worldwide, holding company Omnicom Group, brand Nike, advertiser Volkswagen Group and USA top the rankings Global, 12 January 2018 - Gunn Report, the globa...

Corsair is a rugged font with a handcrafted touch. Familiar and easy to work with, it has a worn-in feel that slots right into your typographic toolkit like you’ve known it all along. Originally commissioned by Best Made Co., its functional beauty was made to mimic the idiosyncrasies of handwriting....

There is Autogrammer but its not free.
I don't think there is any point in paying to have an Instagram account unlesss you are making money off it.

Fantastic free vectors can be downloaded here at FreePik
You could also become a premium member and download even better ones.

Treatment Note for Clean and Clear natural Bright

Treatment note for Amira Rice TVC

And old treatment note shared here as an example.

The cards mostly suck. Would you give your business to someomne who cant design cards?