Paris is a nice name but I think its to feminine . You wouldn't want him getting tease at school. Parish sounds more unisex.....Just my opinion
I think Paris sounds unisex, it sounds good for both genders
The way we test out names is yell them out really fast in a stern voice like the child has just gotten in trouble. I say if you can do that and picture a boy with Paris then who cares what anyone thinks. Ultimately its your child.
The name is your decision, if you like Paris, use that, if you like Parish then go with that.
I also worked with someone who had a male family member named Paris. I think if you really like a name then you should use it.
I actually know a guy whose name is Paris. I believe he spells it, "Parris"