Yes, Finance is the biggest and the money still flows. Look at all the recent hires in Finance at UNSW and UMelb who have been appointed at the Senior Lecturer level straight after PhD. Market loadings are paid in Medecine too. Probably Law as well... I've also heard that Statistics and doing Machine Learning consulting on side is good too. What surprised me the most is all the arts/sociology academics doing big consulting contracts connected to "foreign aid" work.