Whats a good color/pattern combo for the tie and shirt for a black suit?
Easy mode: I may most likely just stick with a white shirt but feel free to recommend short ideas.
Then just grab whatever will take you as far away as possible from looking like you're attending a funeral, while being subdued enough that you don't take attention away from the bride and groom. This is SF where black suits are generally frowned upon. But unless you're going to an SF-themed wedding, who cares? As long as your suit fits and isn't threadbare or full of moth holes, nobody will be the wiser. Have fun.