What's the best Shopify theme for a custom nail shop?

I have a niece that I help with her fairly new business. She creates and sells custom press on nails. The nails are hand made and aren’t ready to ship. They take upwards of 1-2weeks to ship depending on how busy she may be. She also works in a nail salon and would like to have a booking page on the site where users can see her availability in the salon and can set appointments as needed. She also sells the occasional trinket (bracelets, earrings, eyelashes) here and there that are ready to ship.

Any guidance would be great. We’re new to this so all of this coding and stuff is sometimes confusing to us. We’re working on a free theme now but she’d like a change.

This article (Top 7 Best Shopify Themes) covers a detailed review of 7 most Shopify beautiful themes, you can refer to. Personally I like the District most.