Array Data upload format

Ok, so basically I’m uploading a database of ski areas.
Each ski area has between 1 and 7 towns associated with it.
Right now in my excel each town is in a separate column
(see attached screenshot)

Am I right in thinking that it’s best to combine these into an Array to store this data?
Ie So I can code to display the array as a string of text on the Ski area dynamic page. Not have to link 1 text to 1 field for each one?

If so, does anyone have a Macro to combine these columns into JSON format?
Would it be like
“Val Thorens”,
“Les Menuires”,

That I’d then put in an array field?

Would this still let me put in a search function for towns on a repeater page?

Any help much appreciated.