I remember filling out a form to make a forum post on a site (I think it was BLF).
It asked all sorts of things (battery, button location, throw versus flood) in a really nice format.
A friend is asking me for a suggestion for a light for her husband and I thought I would send her that as a prompt to help think about all the different aspects.
Do you know where that is?
Cheers.
You might be thinking of the ‘recommendation form’ on r/flashlight. Here’s a link.
There’s also some more info about choosing a light here.
Perhaps you can copy and paste that into an email for your friend. I’m sure we’d all like to help with some suggestions. 
Also,
that specific sub-forum may be located on a related site. Please see the Related Site list, on the left margin, and maybe it is located there.
That form was on CPF, though I felt it was sort of useless. See the stickied “flashlight recommendation checklist” post at the top of the recommendation request section:
https://www.candlepowerforums.com/forums/recommend-me-a-light-for.135/