nftshowroom is awesome but there are also community NFT gallaries like palnet and proofofbrain. The cost of minting an NFT on https://www.proofofbrain.io/nfts/ is 6 POB and 1 POB for each additional NFT. That really is pennies. We found some artists liked this but needed help with the whitelist fee of 1000 POB. As a community we raised that fee for artists who are promising. It looks like somebody recommended you.