All I remember is that it is a Japanese novel. The Mc was kicked out of his party/guild. He then made his own party/guild and after he trained others he kicked then out and sent them to other guilds or jobs and the kicked out members were grateful to him.
I think there are a couple of these going around... Welcome to the Guild of the Exiled I’m the Villainous Guildmaster of an Adventurer’s Guild – I Just Banish Useless People to the Right Places, but for Some Reason They’re Really Grateful to Me “What? You Want To Come Back to the Guild Now? You’re Not Ready Yet, You Can Do Your Best There.” I'm reading the second one and it sounds like what you're looking for