Group dinner ideas/suggestions?

I'm making dinner for a group of six, need to make fish dishes as one of the guests doesn't eat meat. I was thinking of making a pasta salad and garlic bread for the sides and then Cajun shrimp skewers. Just in case not everyone likes shrimp what else would you suggest making? I was thinking of saffron aioli salmon but do you think the Cajun from the shrimp would overpower that if people wanted to taste both? Thank you for your thoughts!