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

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 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
4. Confluence Source Editor
5. Content Formatting for Confluence
6. Create Page for ScriptRunner Confluence
7. Label Tools for ScriptRunner Confluence
8. Page Info for ScriptRunner Confluence
9. Issue Forms for Confluence

Here is the starting list: