Here is the starting list for Cloud:

1. Adaptivist ScriptRunner for Confluence  https://marketplace.atlassian.com/apps/1215215/scriptrunner-for-confluence?hosting=cloud&tab=overview
2. ConfiForms, forms and workflows app for Confluence  https://marketplace.atlassian.com/apps/1211860/confiforms-data-forms-workflows?hosting=cloud&tab=overview
3. Table Filter and Charts for Confluence  https://marketplace.atlassian.com/apps/27447/table-filter-and-charts-for-confluence?hosting=cloud&tab=overview
4. Github links for Confluence  https://marketplace.atlassian.com/apps/1216106/github-links-for-confluence?hosting=cloud&tab=overview
5. Github macros for Confluence  https://marketplace.atlassian.com/apps/1216734/github-macros-for-confluence?hosting=cloud&tab=overview

These are not available for Cloud:

1. Confluence Source Editor  https://marketplace.atlassian.com/apps/1210722/confluence-source-editor?hosting=server&tab=overview
2. Custom Space User Management Plugin  https://marketplace.atlassian.com/apps/133/custom-space-user-management-csum?hosting=datacenter&tab=overview
3. Issue Forms for Confluence  https://marketplace.atlassian.com/apps/1215818/issue-forms-for-confluence?hosting=server&tab=overview
4. Content Formatting for Confluence  https://marketplace.atlassian.com/apps/247/content-formatting-macros-for-confluence?hosting=datacenter&tab=overview

These aren't even are not list in the Marketplace:

1. Create Page for ScriptRunner Confluence  http://confluence-addons.connect.adaptavist.com/create-page/latest/introduction.html
2. Label Tools for ScriptRunner Confluence  http://confluence-addons.connect.adaptavist.com/label-tools/latest/introduction.html
3. Page Info for ScriptRunner Confluence  http://confluence-addons.connect.adaptavist.com/page-info/latest/page-info-macro.html

Here is the starting list: