I have a lot of beautiful AI generator graphic design images that I want to show people

If you just want to show people your designs, post them to your social media accounts. If you want to become an Adobe Stock Contributor, start off by reading all of the Learn & Support help pages.

https://helpx.adobe.com/support/stock-contributor.html

If you are new to stock, you should consider these resources: https://helpx.adobe.com/stock/contributor/tutorials.html
Please read the contributor user manual for more information on Adobe stock contributions: https://helpx.adobe.com/stock/contributor/user-guide.html
See here for rejection reasons: https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
and especially quality and technical issues: https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html

OK. So submit them to Adobe Stock.