Open the tins carefully and leave the lids partially attached where possible, then set them near the center of a large wooden serving board. The partly peeled lids make the board look polished and also help keep delicate fish pieces in place.
Arrange small ramekins of dill pickle mayo and dill dip mix around the tins, leaving enough space for forks and cheese knives to rest comfortably. When the bowls are spaced evenly, the board looks organized and guests can reach condiments without knocking into the seafood.
Toast the sourdough bread slices until crisp, then rub the warm surfaces lightly with fresh garlic halves before placing them on the board. The toast should look golden and shatter cleanly under a forkful of sardine instead of bending or turning soft.
Add crackers, dill pickle potato chips, crudites, fermented pickles, vegetables, olives, and dill pickle peanuts around the anchors, filling open spots without piling everything too tightly. You want the board to look full and colorful, but each section should still be easy to grab from.
Finish with fresh fruit such as grapes, lemon slices, and fresh herbs for garnish, then serve so everyone can build their own bites with bread, fish, pickles, and dips. The final board should have clear contrast in color, texture, and shape, with no soggy patches or crowded corners.