I agree. Problem with me is there is too much of a selection. That makes it much more difficult. 205/60 or 215/60 with 245/60? Currently has 185/75-14.
Go to the local car shows and look at the tire sizes people are running to get an idea. The Southwest Mini Nationals a week or so back would have been a great place to start, unless you went and didn't see what you were looking for.