In terms of the usual data collection, I'm very happy with TrackerControl[0]. It's basically meant to run as an always on VPN (it isn't one) which allows it to block ads, social media, trackers, etc with quite reasonable granularity. I'm surprised at the amount of apps that fail to work correctly unless they have access to their data harvesting endpoints.

In terms for pure access to the data/permissions, GrapheneOS seems to be the main (only?) choice. The default permissions apps get in current day Android allow to group activities and tie them to a single user across apps/sites.

[0]https://f-droid.org/packages/net.kollnig.missioncontrol.fdro...