If you want to balance high pay and still have flexibility, I recommend a degree in statistics, economics, or computer science and getting into the technology sector. There is a tendency to just care that the work gets done, without a need for proscribed schedules.
Medicine can pay well and allow people to work part-time, but you still have appointments to keep.
Law can work depending on what area you pursue, but again the schedule may be somewhat rigid.
Finance often comes with insane hours and people are tied to the markets if they want to be among the highest earners, but there are other paths.