Well it is up to you which platform you are willing to use however as per my experience i will suggest you to use aliexpress if you are a busy person and have not enough time to handle ecommerce issues further more i have also create an store in shopify where i added aliexpress products and believe me it is to easy for me to handle my store and very to ship and choosing the hot products and for all of this matter a website withintheflow.com help me alot.