Park maps have FP kiosks on them, and you can find lists online. We were there 2 weeks ago, and actual locations did not match maps exactly. MK also has them near Buzz and also near Stitch. HS kiosks near TSMM never seemed busy. AK on left just before you get to Tree of Life. Note that sometimes they opened late (HS by times board didn't open until 2pm one day), or closed early (on another day at MK kiosks near Buzz closed and half of Philharmagic kiosks closed). Lines varied from picking from 5 open kiosks, or 10 minute wait. Waits for kiosks were longer when MK was LESS busy, likely because there were tons of almost-immediate FP available, also probably because some of the kiosks were closed. On busy MK days, when FP return times for most rides were 2-4 hours away, there were shorter lines for kiosks. Your best bet: check the park maps beforehand, then when you get there in the morning, scope out where they are, if they're open, how busy they are, etc.