It depends. If you have a significant budget, dropshipping on your own website is the best option because you’re not at risk of the platform banning your seller account for one reason or the other. You ultimately have control over your website and business, from SEO, to revenue, to policies and even domain name recognition. It's just like farming on your own land as opposed to farming on someone else’s land. If you're tight on budget then dropshipping on a marketplace can be a preferable option since it's quicker to list your products and you can benefit from the traffic and conversion rate that the marketplace attracts. A multi channel approach will be to dropship on your own website and other marketplace platforms as well. In this case you should first focus on one channel and become successful with it, before expanding to other channels.