You can get a 30-day trial key at
https://myarchicad.com
For an educational key, you can apply there or via your school. For a professional key, you would have to purchase one from the reseller servicing your area.
AC 28 USA and earlier • macOS Sequoia 15.3, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB
One of the forum moderators