Grief is a wild and howling wilderness, and you can only wander it lonely. By definition, any attempt to form a comforting company and traverse it together will set it somewhat at a remove.
But a word of warning: if you attempt to avoid the crossing altogether by surrounding yourself constantly with crowds of busy companions, it will grow in your gut and slowly take over your whole body. Or if you think you can cut the journey short, or hurry through, holding your breath and rushing past as though avoiding an unpleasant sight or smell; this is useless. Grief is inevitable. It will hunt you.
It is better to find one or two companions who are lost in their own wastelands, or who have wandered through theirs in the past, and then you can cross lonely-together.
Side-by-side, but each silent, alone, and lost in their own loss. This way, each dulls somewhat the pain of the other and the journey is made bearable.