Here's my recent experiment with coming up with specific font guidelines for my brand. I have used Roboto and Open Sans together for a while, here I used ChatGPT to help me streamline what goes where - main headings, subheadings.
Keep in mind, I'm not a designer - lol - hence, me asking the bot to reallllyyyyyy spell out everything - like "what is title case".
Now I am keeping the print out of this on my desk. :)