it depends..
the CHA limit can be taken care of by drinking pre-war whiskey just before recruitment. whiskey does lower your perception and increase charisma by one. though this drink is pretty rare in sonora, with possibly only one shop in Phoneix ocasionally restocking on it, you may find other bottles by looting or doing quests. yet you won't have enaugh to constantly ditch and reenlist your party. the hard limit of 5 companions in sonora, is not bypassible even by burn fo2tweaks. but in order to be able to enlist more than 5 you need to break the game, as playing normally it's not possible to have more than 5 companions. 4 of them are findable in the game, and fifth is an extra companion if you chose the perk to continue after endgame..
the CHA limit can be taken care of by drinking pre-war whiskey just before recruitment. whiskey does lower your perception and increase charisma by one. though this drink is pretty rare in sonora, with possibly only one shop in Phoneix ocasionally restocking on it, you may find other bottles by looting or doing quests. yet you won't have enaugh to constantly ditch and reenlist your party. the hard limit of 5 companions in sonora, is not bypassible even by burn fo2tweaks. but in order to be able to enlist more than 5 you need to break the game, as playing normally it's not possible to have more than 5 companions. 4 of them are findable in the game, and fifth is an extra companion if you chose the perk to continue after endgame..