Well look at that, one of the most popular letters is a Y in the 5th position. You are excluding the valuable "E" with a first word of STORY. This provides a 15% chance of landing a Green tile with the "S" in the first position. You also have the same 15% chance for a Green tile with the "Y" in the last position.
STORY is a good starting word, but what else can we gather from the chart?
The 5 most popular letters overall are
This would result if a very good starting word being ROATE, OATER, ORATE to gain some 🟩 or at least a couple 🟨.
If these words whiff entirely...then what is the next best choice?