Brandt, I am so sorry to hear about your loss. Even though I have met you and your dad only a couple of times, I remember the hilarious stories he told and can see how you both had an amazing bond.
Since you have 5, 6 &8, consider the short 3 wt 7.5 ft for small brushy streams or 8.5 / 9 ft for open small streams. The 3wt is more versatile than the 2 wt.