new comer

This may be of help:

Get Started | Artist Hub - Adobe Stock

Which type of images are mostly accepted and sell?

By @dream work

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The good kind.  Stock looks for professional quality assets that are suitable for commercial use in print, digital and textile projects. 

Read your Stock Contributor User Guide.  Also compare your work with current Stock inventory before you submit.  Your work should be as good or better than what Stock has. If it's not, don't submit it.

• https://helpx.adobe.com/stock/contributor/help/submission-guidelines.html
• https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html
• https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/photography-illustrations.ug.html
• https://helpx.adobe.com/stock/how-to/tips-stock-image-acceptance.html
• https://helpx.adobe.com/stock/contributor/help/vector-requirements.html
• https://helpx.adobe.com/stock/contributor/help/generative-ai-content.html
• Model/Property Releases:
  https://helpx.adobe.com/stock/contributor/help/model-release.html
  https://helpx.adobe.com/stock/contributor/help/property-release.html
  
  

Good luck.

Read the Adobe Stock Learn & Support help pages which contain a lot of information about becoming a stock contributor.