Disable Delve for a group of people

I am looking for some kind of temporary solution till we have proper setup for business partners collaboration (for e.g. Azure B2B setup or a separate instance of Azure AD to manage all business partners and will only be allowed in external sharing). So considering that if we want to share secret material with business partners then we do not want to use external sharing since we cannot enforce MFA for external accounts. So as a workaround we are OK to create external partner accounts in our AD with E1 license but in O365 they are kind of internal users so they get access to Delve and this is where we need this kind of feature where we should be able to block a group of users to use delve features.