I am a professional accountant, what IT field should i choose?

Question

I am seeking to combine finance and programming what should i learn and what will be most relevant and fruitful:
1) Data Science
2) Machine Learning
3) Cloud Computing (web based ERP development)
4) Blockchain ( Developing Dapps)

Answer 1

python, visual basic, sql, matlab, R
python is enough from my point of view for data science, machine learning and dapps
sql is good for ERP

Answer 2

Consider to learn web for creating some online accounting services and applications.