I use structure as reference in general, and 1 atr stops from 1 timeframe above (say daily and then trade the 2hr chart).
I've noticed congestion zones often show the best spots to measure fibs (the spot where the most bars meet, or most recurrent price level in the ranges), same as crucial swing high/low points with no touches in at least 12 bars left or right.
Hope that helps (or maybe you already knew this stuff).
These fib levels I learned from David Alcindor, and they are very good btw.
And thank you for the time you put on explaining your methodologies.
There are pretty different awesome ways to use Fibs; probably because Fib's awesome itself!.
Time analysis using Fibs also interesting. I have started to put on what I've learned in the last months to use. I'm really optimistic about that.
I mostly use the time targets from Tim West's methodology in my trading (and his indicator pack, the rgmov, inside/outside bar and options expiration level indicators are awesome for Forex)