Your homepage is probably one of your most popular pages in your store.
One conversion boost is to put your best products on display, front and center. Ideally, you'd use the products which produce the best customers (e.g. highest LTV) like what Repeat Customer Insights measures but you can settle for just a highest sales or volume too.
That will get people looking at your best products, where you'll have the best proof of value and hopefully end up converting more customers.
You can also add some "hopeful" products to this too. These are the products that aren't your best yet but they are up and coming and you're wanting them to continue to improve.
Use cohorts to find out who the best customers are in your Shopify store
Repeat Customer Insights will automatically group your customers into cohorts based on when they first purchased. This will let you see how the date customers bought would impact their behavior.