The Truth.
Your Portal Announcement.
Isn't needed.
It's what the portal was designed for.
Every coach in the country can see every player that's in the portal.
If you insist on making a portal announcement because you want the attention.
Post your game statistics.
Don't post data and analytics if your statistics don't advertise you're a good player. Coaches need you to be able to play in the game and not in a showcase.
Post your phone number.
Don't post your advisor's phone number. College coaches want to talk to you and not your advisor. Be tough enough to talk for yourself.
Any coach that is interested in you should talk to your high school, travel ball and coaches at the school you're leaving.