I need help to find a good office/ergonomic chair for around 500$ or less

Hello everyone, I need help with finding a good chair. Im 183cm and live in sweden and i have a hard time finding a good chair for long sitting sessions. I sit all day on my chair cause of gaming and studies but my back hurts soo much. I have tried to look for some good chairs for in my price range but every chair that has been recommended by reviewers cant be bought in europe. Therefore I turn to you guys. My only requierments is that it can be shipped to sweden, suited for my height, have a neckrest (or the option to buy one) and fits my budget

Thanks!