The Mongooseverse Charted Space 1105 setting only has one real TL16 world inside the Imperium: Vincennes. There is another in the Hierate: Teahehwaih, though much of its production goes to placating its rivals. Beyond that, there are three others that don't really make the cut in my opinion. One is Darrian which can't make anything at that tech level, Pashus with 80,000 people and Research Station Zeta, a jump drive research station mentioned in Singularity, and Gannvair with 500 pop and a commune of engineers working on high tech computers and sensors. You'd need to move a decade in the future to find more.