Start by adding up the numbers in each column as you have to have a min of one white space per number. So column 1 for example has 22 spaces taken, column 2 has 13 spaces taken, column 3 we can start with since all 25 spaces are taken.

You also don’t have to use the default options on your subscription.
I use the one character per server subscription to keep the costs down. As you can level every class/job with one character, there’s not really a reason for more than one. It took me about 3 months to get to end-game material and I play fast. Plus…