Best advice for city pages that has no physical address?

Hi everyone, I work for a large company who runs a marketplace for decor and basically they already have 15 or so city pages ranking quite well but we're wanting to actually have a local strategy.

Currently we have:

*The basics covered such as meta description

*City name in slug

*Using one H1 for the primary focus keyword (vintage furniture)

*We have some text on the page but not too much, only items listed on the marketplace that are local to said city

What else could we do to improve our local seo to these city pages? 🤔