What language(s) do I need to create an online market place like Amazon

Answer 1

Give an look over this course and the link Dauda Kolo
https://medium.com/@nandini_31618/how-to-build-an-e-commerce-website-like-amazon-f3728be6c19e

https://www.udemy.com/create-a-buy-and-sell-website-like-amazon-with-joomla/

Answer 2

Remove c++ from your tag then the rest are the possible lang you can use