Safezones for current Social Media platforms PLEEEAAAAASE

what you're looking for is here: shortformpreflight.dev

AEAI - the After Effects Assistant in the Public Beta can do this apparently - give it a shot. Then save the AEP as v25/v24.

I set up custom guides from View > Export Guides for each platform. It’s a quick workaround until official safe zones arrive.

I have a dozen or so saved guides that I have created for corporate designs. All the tools are in the View Menu. Enable rulers, drag out your custom guides, then select View/Export Guides and put them in an appropriate folder. 

All of my corporate projects have design guidelines, font lists, colors, and guides in the Client’s root folder so the designs are always consistent. It only takes a minute. 

Here's what you're looking for- https://addikivadika.gumroad.com/l/Safe-ZoneCustomizer

Can't you just use a guide layer?

yeah would be nice if we could adjust the “safe zones” in the program monitor. Right now it's just for tv zones. But we all know social media is way bigger. Please make the safe zones adjustable ….

I just added tools for social media safe zone previews to the Community Library of my (paid) extensions Automation Blocks for Pr and Automation Blocks for Ae.

The tool contains safve zone overlay images for TikTok, Instagram and YouTube Shorts and can add them to your Premiere Pro timeline or After Effects composition in one click.

Here is the direct download from the Community Library:

Pr:

Sequence/Guides/Create Social Media Safe Zone Clip.xml

Ae: 

Comps/Guides/Create Social Media Safe Zone Layer.xml

You can download the xml files and load them directly into Automation Blocks or copy them in your User Library. This also works with the free trial of Automation Blocks.