Take an idea that you feel strongly about or go to your Twitter Analytics in Hypefury and sort by most likes (to get an idea of what people want to see) and write a newsletter.
Aim to make it as brief and actionable as possible. This will go to your mailing list which will be made up of people who opted in for your lead magnet, so they already know you and likely want to see more from you.
Your actionable tip/idea/main content
How you can help them (your intro offer)
Your feedback poll (a native feature in Beehiiv)
Go into this with the question of "how can I give them a tip they can implement within the next 24 hours and how can i do this in as few words as possible without leaving out important parts?"
My Newsletter: https://themarketingblog.com
Alex Hormozi: https://www.acquisition.com/mozi/money/minute
Matt McGarry (great example): https://www.newsletteroperator.com/
Write One Email Newsletter - Month 11 · 10k Per Month Agency