Shrimp Ceviche Recipe

Name: Shrimp Ceviche Recipe
Ingredients: 1 small white onion (thinly sliced); 2 teaspoon salt; 2.5 pounds cooked shrimp (peeled, deveined, and chopped into bite-size pieces); 4 Roma tomatoes (seeded and chopped); 1 green bell pepper (seeded and diced); 1 jalapeño (seeded and diced (optional)); 1 orange (juiced); 1 grapefruit (juiced); 2 lemons (juiced); 10 limes (juiced); 1 small bunch fresh cilantro (finely chopped); salt and pepper (to taste); Tortilla chips or Fried Green Plantain Chips (for serving)