Here's a few senkos hot colors I talk about that are harder to find.

Yamamoto senkos red red flake #009

Bass pro shops stik o worm. Amber red flake.

Gambler ACE Electric Blue (I see these)

I use the red shad strike king shim-e-sticks....they seem to be my go-to color

Anything predominantly green works just fine, Senko #912 works great in my neck of the woods. 

#952 senko

Not hard to find, but this past Friday in NJ, the senko green flash worked well in stained water.

Chart/laminate Trick Stick