I think a loose theme can help.
Charcuterie - meats, cheese, crackers, veg, fruit, pickles, piccalilli/chutney
Mezze - stuffed vine leaves, meatballs, falafel, dips/hummus, bruschetta, olives, dips, flatbread or pitta
ploughmans - scotch egg, pork pie, cheese, ham, good crusty bread, pickle, new potatoes or potato salad, salad veggies
Tapas - frittata, ham wrapped melon, stuffed peppers
Indian - onion bhaji, samosas, tandoori or tikka chicken, naan or roti, lime pickle, onion and tomato salad