As one who has been very critical of Ryanair, and much maligned for it, I think the advice by bigdaviet and CheekyVisual is absolutely first class. A 737 or Airbus rating is a path to the future, whereas a turboprop rating can be a path to nowhere (I have done both). The world has changed and the harsh reality is that total experience is no longer what it once was in terms of guaranteeing employability. What counts is an appropriate rating. Which is the better rating various year on year (my own view is that right now an A320 rating is more marketable than a 737 one, but that can change in a moment). Nonetheless, a 737NG rating is a great thing to have and I would jump at it before looking at a TP rating if there was any choice. In this care Ryanair is undoubtedly your best option (did I actually just write that?).