Advice needed - Dropshipping legalities.

Hello, everyone
I wanted to ask how legal is it to sell other people's merch with drop shipping. What can I sell ? And what will get me in trouble ?

For example can I sell branded merchandise ? (clothes, mugs, keychains, etc)
Something related to a movie, video game, anime, book, TV show ?
Do I have to pay some kind of tax or anything to the original creator ?

depends on what platform you want to sell on,amazon, eBay, your own site -shopify-

as i know for both ebay and amazon, you will gte suspended if you are selling branded products, or any copywrited content,...

I was thinking more of a Shopify site and exposure with FB, Twitter, Instagram