What is the data security access for read only role for accounts, contacts and service requests?

Hello all,

We created a custom Roll that sees only Accounts, Contacts, Service Requests and Activities. The role is only for Sales/CX-Users only and it has only read only privileges.

Now the problem is that we don't see any Data for the 4 Objects.

Therefore my question is what is the data security access in order to see all Data for each object (for example in the Object itself or in Workspace)?