Hey @Barbara Frazier48! We don't currently have a built-in way of doing this, so it would need to be done manually. There are websites available that can generate share links for various social media platforms; I'd be sure to test the links thoroughly though, including on an incognito/private window and across browsers if possible — social media platforms can update often, so you'll want to ensure the links generated still function as expected. Our guide here155 includes how to add buttons to emails, and this one130 covers how to get the web link for broadcasts.
Alternatively, if you just want icons that link to your profiles (not share links, per se), then we provide sample code for that in this article99 that you can modify for your purposes.
Also please feel free to file a feature suggestion for building this into the app here55; we always appreciate the feedback! ☺️