RE license, which online course (company)?

[Dan Barman]

After dipping my toe as a RE investor, am considering transitioning to selling residential RE as a full-time broker here in Brooklyn. Looking online at options for getting my license and seeing many companies offering different tiers of courses that cost between $300 - $1,000.

Would love some advice on which company and which program to go with. What do I need / not need?

I'm currently working a FT job so will want flexible schedule and to take classes online. 

Am also wondering what NYC brokers have to say about which brokerages are the best to work with. I have strong sales experience working with SMBs in tech, eCommerce and retail. My main concern in getting started is to find a good mentor who can help drive lead generation in the beginning, and help me to build a system for a sustainable, successful career. 

Happy to hear everyone's thoughts. Thanks in advance!!!

-Dan