I personally wouldn’t come to Envoy if I was in your shoes. You are young with no family and a degree, meaning you can hustle your way to the majors.
There are better and some would argue faster ways to get to mainline than Envoy, plus you have your whole career ahead of you. If you were 40, married and no degree Envoy is an ok choice.
If you absolutely must work for AA, well pick a wholly owned and wait it out, however I would consider that a last resort in your position.
Best of luck to you and welcome to the 121 world.