Choose the data centre closest to the people who will use the server: your visitors, your players or your staff. Shorter distance means faster responses.

Then check that the product you need is sold there, because not every product is offered in every city. On each plan page you pick the location first, and the prices update for it, including any location charge. The cart shows the same amounts.

hostripples.in/datacentres lists every location and which products are available in each.