Crawford is a skilled boxer, so even if he is out of Arum's management, he will find a way how to find good fights. Even if at first, he will not get what he wants, but if he will continue fighting the best and not choosy, he will rise up. So with or without Arum or any known promoter, Crawford will make a name depending on his power inside the ring. The promoters are just secondary when it comes to real achievement of the boxers.
There are still a lot of great promotions that he can go to manage his fights but he must pick the right promotion, Bob Arum failed him for not getting the fights that he wants the promotion that he should get is the promotion that he can secure him a fight against Spence and some other big fights he has the skill and the power to become on the top 3 pound for pound best fighters of this generation.
Crawford would renew his contract with Top rank if he believes that Arum is fair to him, he is getting fights and he is winning but as a boxer, he always wants to make big money which he is not making. Mayweather, Pacman, and Canelo, these 3 are the big earners in boxing, and IMO, Crawford deserves to earn a lot of money too.