There's 135 companies and 121 companies, where you can PAY to work there. Free isn't good enough, as quite a few 135 and 121 pilots are working for peanuts anyway and they could always find some joker to do it for free.
To get the pilot to PAY for being there, now that's some big ROI for the 135 or 121 operator.
I think Superior, a 121 freight operaton (UPS contractor), has FO's that buy time in the planes. Airnet has some set up where they will let you buy time in the pistons, so you can get up to 135 mins. There was also some airline that would let you build time as an FO in their airliners...it was like 100 hours of Beech 1900 for 19,000 bucks. They had a few other deals available also. You'll see their ads in the back of most flying magazines.
If you have 25,000 to 80,000 tied up in your initial training and ratings, what's another 10,000 to 20,000 invested in buying your multi time at some 135 operator. You can then make a beeline for a 121 airline like Colgan, drop another 20,000 into your education, building qualtiy 121 time flying a Beech 1900 or Saab 340.
You'll then be in a very good position to put 7,000 to 10,000 into your 737 type rating. At this point, Pay For Training takes a strange turn however. For some reason, if you PFT at some point below the Nationals, IE: SWA, you are considered some kind of lowlife...so don't let it get you down, the best is yet to come.
Soon, you'll be buying that 737 type and you'll be able to join the elite. You will be well respected by your peers and an envy to all of those that shunned you, when you "put your money where your mouth is" by using your financial horespower to cut to the chase.
Money, it's just a tool, use it to get what YOU want. Forget about everybody else and what they'll say, because you'll soon be wearing navy blue slacks, white shirts with epaulets and shoulder boards and the coveted roper boots, while pulling your purdy neat bag through the terminal, showing them sheeples, "you da man!".
Time's a wasting!