xxo
Sounds like a wonderful initiative. Unfortunately I don't have anything to offer, other than my praise.
I'd assume that everyone is already trying to get out from under coal, and those still heavily invested are not going to be able to get much return on that investment. Oil, except for Tar Sand oil might still have investment potential going forward, but profitable oil is going to be harder to find. Gas might turn a profit in coming years, but there is presently a huge surplus, and it too may be hard to exit without taking a hit.
Rail freight is probably a bet on coal.
If dropping fossil fuel isn't possible, at least advising them to get out of coal & to be very careful of oil holdings might be a fall back position that the majority would approve.
Best of luck
Terry