Office 365 that always has read access to all Teams / SharePoint project sites.

[PPHero]

I am working with a client that is migrating its data from file share to SharePoint.

• I managed to deploy an automated Teams provisioning tooling so that they complete their projects from within Microsoft Teams.
• One channel will be external client collaboration.
• The management team is used to having access to all projects at all times so they can quickly supervise all projects. The management team is quite senior and they don't want to be manually joining each newly created project team.
• I have already created an Office365 group for the management team, but now I need them to have automated access to all SharePoint sites behind the teams created for the projects. Ideally automated....
• What would be a good/best practice way to enable this?