Solid MagSafe mount for long flights?

Yesterday I flew from Bangkok to Istanbul. It was a 10-hour flight, and I spent almost the entire time watching the second season of The Pitt—9 episodes to be exact. I watched it all on my phone :( and realized I desperately need a gadget to hold it for me.
There are tons of "reviews" on YouTube, but I don’t trust them too much. Maybe the community here can suggest something? I'm looking for a mount that will hold an iPhone securely and steadily for hours on a plane, won't be too big or too heavy, and won't cost a fortune