Hello.
Can I see your store, first, please? After that, I will be able to send a concrete proposal.
In a meantime, I just can say that I can help you to reach the optimal presence and visibility over generic search, and also at resell listings. As part of SEO, I will strongly suggest using of Google Ads, but don't worry, with very small budget and only with one set of display ads (as $50/month) — that is a proven way to get rapid impact of general visibility (if previously, Search Console is properly connected and sorted). Using promoted FB posts (not FB Ads) for same small budget as at Google Ads, will also bring a benefit, like all other social media together, in sense of SEO...
Two very simple, but still very powerful tricks, and most important, proven, not just once... I can show you examples...
So, I will reply with a concrete proposal, when I check your main store.
Thank you.
Neven