Welcome @danielabrozzoni!
I think @deadmanoz’s addrman snapshots from 2026-03-05 till about now should be a good starting point. In the README, he mentions that these are all captured at about the same time.
Additionally, I’ve just last week set up something that captures the snapshots at 0 UTC on all my monitoring nodes: add: daily getrawaddrman snapshots by 0xB10C · Pull Request #160 · peer-observer/infra-library · GitHub & change: enable addrman snapshots by default by 0xB10C · Pull Request #174 · peer-observer/infra-library · GitHub. So we have data from now on.