Typescript is javascript, theres no way to code typescript without javascript they are the best friends so you can use classes in javascript, there are many options in this world. But nowadays Javascript is leading startups cause you can do frontend and backend same language ( also you can code Frontend with Typescript). But if you project needs super-fast responses from Backend, so choose another language more powerful like Golang or Java, if not go with nodejs.

Try using Stripe -> https://stripe.com/docs/connect[^] You can do payouts

If you are starting a project, I strongly recommend you Nodejs (Javascript) for Backend and for FrontEnd Jquery, React, Angular, and soo on, Everything is javascript, don't break your head.

Hi My friend, this is a good site to know what's javascript -> What is JavaScript? - Learn web development | MDN[^]