I recommend having your brand on the social selling app Poshmark. On there you focus on fast delivery and really nice packaging for a pleasant experience for the buyer, and rack up 5-star reviews and sales traction and revenue. This is a great way to expand your network as a seller and learn the marketplace. On one of my Poshmark accounts I grew it to 22k followers in a month. You can employ bot software that mimics you being active on the platform. Then every item you newly list for sale in your shop gets added to your follower’s feeds. Once you’re ready to launch your private standalone shop under your business domain I recommend Shopify. You can research your costs on their site, all platforms carry transaction fees, but sites like Shopify save you the trouble of hiring a web developer. Market through advertising, influencers and social media to drive traffic. Feel free to reach out to me for more advice. Good luck!