Are you in the USA? At this time of year many big box stores like Home Depot, menards, etc are looking for “merchandisers,” what are trained to build the store displays. As I understand you do not deal with customers.
Even rural areas have merchandisers at Walmart’s. So do grocery stores- it’s a merchandising company that comes in and stocks the bread, the sodas, and other goods. Grocery stores use outside companies. Home Depot has staff specifically in that role and it’s full time work.
Some merchandisers travel within a district to other stores but it’s decent money. Even Hallmark cards uses merchandisers. Gone are the days when regular store staff stocked the shelves and counters!
Merchandisers? Meh, that's just a posh way of saying "Shelf Stackers"
20 odd years ago I did a similar placement from College in a Supermarket. at the end they wouldn't offer me a permanent job because they said I was "too slow at shelf stacking", I was literally like, WTF?! Any excuse to not employ the disabled, they were perfectly happy for me to work 15 hours a week for them for free on placement.
I officially give up.