...
https://nexus3.o-ran-sc.org/#browse/browse:docker.staging (make sure not to log in. Otherwise the link does not work). Go to correct image in the tree and then open the subtree "tags". There should be at least one version under the tag subtree (e.g. this link for the near-RT RIC subscription manager image: https://nexus3.o-ran-sc.org/#browse/browse:docker.staging:v2%2Fo-ran-sc%2Fric-plt-submgr%2Ftags). If not, then there's no staging image in the staging repo for this component.
...