If you are a composer looking for general-purpose layout advice, or a performer/group looking for a single page reference guide to give to the people who write for you, here is a document my colleagues and I at Musikfabrik have come up with. It is by no means exhaustive. One could read the 704-page Behind Bars by Elaine Gould, but we have tried to distill everything on to one page. Ideally the second page will have links to specific instrumental techniques. I should also apply the disclaimer that these guidelines reflect our own ensemble culture at the present time.
Here is the link in case the embedding does not work below: