Once you create a smart contract on Mintbase, we immediately register it with OpenSea behind the scenes. So as you mint tokens on Mintbase you can immediately look at "My Items" in OpenSea and they will appear without the need to send them anywhere (make sure you are on the right network).
Creating a Storefront
In order to see your logo appear in the collectables sections of most wallets like Trust Wallet or Coinbase Wallet, you need to edit your storefront with them. Find your token then click and follow the steps to add a thumbnail.
You can sell your assets for dai, run auctions, and works great for secondary markets. For example a ticket sold on Mintbase was later sold on OpenSea from a Twitter post.