I'd say the Lunar, Gothic, Tyrant and Dictator are probably found in all Segmentums, as they're the mainstay cruisers.
I would expect the Emperor and Retribution to be similiarly ubiquitous.
A quick look at Lexicanum revealed the following:
Godefroy Magnificat, an Apocalypse that served in the Sabbat Worlds Crusade in Pacificus.
Dominus Astra, an Emperor that played a pivotal role in the battle for Macragge, also in Pacificus.
Relentless is the Lunar Class star of its titular novel, set in the Bethesba sector of Ultima Segmentum.
Righteous Power is an Overlord that took part in the Taros Campaign in Ultima Segmentum.
Invincis Squadron, Swords, Taros, Ultima.
Novem Squadron, Firestorms, Taros, Ultima.
Omna Squadron, Cobras, Taros, Ultima.