You can search Groups in https://www.planetromeo.com using the general search. Select the Groups tab, click on the magnifying glass in the upper right corner of the top menu bar. Type the name of the group, or parts of the name, and the search will show you the results matching your criteria.
Remark: The search results will be presented underneath the search bar. If you don’t see any groups, make sure you also have the Groups tab selected.
If you open the Groups using the Groups icon, you will see the explore page with shows you some of the most popular groups in which you can also search.
Groups are not available in the apps.