Arrange the caviar tins or jars on a serving board or platter.
Place a bowl of crème fraîche in the center of the board.
Scatter chopped chives, red onion slices, lemon wedges, hard-boiled egg slices, capers, and fresh dill sprigs around the caviar.
Arrange the blinis, toast points, or brioche slices on the board, leaving space for guests to assemble their own bites.
To enjoy, spread a small amount of crème fraîche on a blini or piece of toast.
Top with a small spoonful of your preferred caviar.
Add a slice of hard-boiled egg, a few capers, a sprinkle of chopped chives, and a dill sprig for garnish.
Squeeze a bit of lemon juice over the top before serving.