Hi I am developing a game and as It's obvious the game is going to need WebSocket in order to be live, so i have been researching and found three ways to do It, But I got questions:

1. TS code is the first and easy way to do the subscription but what are the limitations for this ?

2. Quiknode

3. Geyser What are the requirements for about 20 Million requests per month ?

Is there another approach that I am missing ?