Most books that I've read say to face the entrance to the east or south. This, according to the books, encourages early exit from the hive to take advantage of the morning sun. There have been numerous posts here that say it doesn't really matter. A lot depends on your bee yard, how you want to arrange it, how much space you have, etc.
I've seen pics posted where the beek had 4 hives on a pallet with the entrances facing 4 different directions. It works.
Please keep us posted on what you find works for you.
Ideally you would like to have them face east or southeast, mine are southeast, i have to consider protection from whipping cold winter winds and the heat of the sun in the summer months, and also getting the foragers out early, beneficial to you for a honey crop. Facing towards the sun gets your foragers out early in the morning, and for me, in the spring , fall and winter months, warms up the hive earlier in the dayâ€¦..