I'm sure some firms will help you get licensed, but it's not really necessary. You might check with a local firm to see if they have any discounts with the licensing schools.
I used Rockwell's on-line course when I was licensed, and I liked it then. Much of it was material I already knew because I am an attorney, but if nothing else it was good prep for taking the test. They even had some of the same questions in their practice sessions that I saw on the real test.
Once you have your license you're free to go just about anywhere--it's not like getting a job. Most firms will take in new agents. But designated or managing brokers are now required to provide more supervision of new agents, so it might not be quite as easy as when I was licensed.
Two things about the business:
1. There are a lot of people who just want your money or your time. It might be a referral company who will promise to "put you on the first page of the Internet." It might be a company who helps you set up a web page and system to capture viewers and convert them to clients. It might be another broker who takes you onto their team and takes a percentage of your commission. It might be your designated broker, who wants to you spend time and/or money on certain activities. Many of these things are total scams, so be careful.
2. Paychecks can sometimes be far and few in between when you're starting out, so you need to have a nice nest egg to fall back on. If you're already up to your eyeballs in debt, this probably isn't the profession for you.