As Bannerlord will be different on many points, I guess we will explore new ways to start the game and that those we use in Warband will be irrelevants.
In Warband, I used to start in Praven, take the mission from the merchant, sell all I do not need, buy best Bow, two quivers of arrows, a 1H (lately Mace), horse (usualy I already have one), improve armor as I can and then go fighting looters alone.
I get some level up, stuff and money like that.
Then, I recruit in villages, but during battles, I let them at the start of the map and go alone to diminish the enemy forces and prevent my soldiers being harm too much.
I do not search for companions, but if I see one that suits me in a tavern, I recruit.