Very simple mod to increase max number of companions by 10 would help. Right now I have no companions available to for separate parties, quests, or to fight in my own army. All of them are either governors of fiefs or in caravan groups.
AI clans also should start with some unique companions and also be able to recruit companions over time. It's absolutely ridiculous we have so many tier 2-3 clans with one member and the number never grows. Never recruiting any companions for caravans or to become governors, another reason they go bankrupt or have the entire clan get wiped out so quickly.