It needs to be based on the 18 provinces. 2 senators per each province and that’s it
The 18 state is garbage. Bosaso to Galkayo is 750 km, galkayo to hamar the same. Yet they have 4.5 states(galgaduud, hiran, south-east mudug, banadir, middle shabelle), while PL has 2.5 states. 18 State model doesn't work if it's cannot be applied uniformly across the nation. Hence aa formula is needed that can be applied nation wide.
Land size consideration anad population wud be a perfect formula