Wix works with a reasonable amount of dropshipping apps. When you combine that with the facts that Wix can be very easy to get started with and at best at least quite affordable, it can be said that Wix can be at least a pretty good choice for dropshipping. And as Wix has bought the Modalyst dropshipping app, it is not unreasonable to assume that Wix might in the future try to focus even more on becoming known as a particularly good choice for dropshippers. However, at least at the time of writing this, Wix is not in my opinion the best ecommerce platform for dropshipping.
That honor goes to Shopify. It is in my opinion overall the best ecommerce platform and as out of all the ecommerce platforms it seems to focus the most on dropshipping, it might be the best choice for dropshipping even with a clear margin. Compared to Wix, Shopify is in my experience, for example, a more advanced ecommerce platform. Despite of that, Shopify is also at least quite easy-to-use. At least at the time of writing this Shopify offers new customers a 3-day free trial and first three months for $1+taxes per month. Try Shopify for free.