They remove the transport inconveniences, illiquidity, transferability, and volatility related to dealing with physical gold.
1) Tether Gold (XAUT)
They deliver physical gold bars to any address in Switzerland.
https://gold.tether.to/
2) Paxos Gold (PAXG)
Each Pax Gold (PAXG) token is backed by one fine troy ounce of gold, stored in LBMA vaults in London.
https://paxos.com/paxgold/
3) BITXGOLD
Each BITXGOLD TOKEN is 100% backed by physical gold stored in secure vault. They guarantee BITXGOLD TOKEN’s liquidity. This company is registered in Dubai United Arab Emirates. ("Ace Stock Commercial brokers CO.LLC" with a full finance and stock brokerage license)
https://bitx.gold/
4) Gold Coin (GLC)
All of their gold holdings are fully audited for transparency and can be viewed at any time online.
https://goldcoin.com/
5) Perth Mint Gold Token (PMGT)
Every PMGT is a tokenised version of a GoldPass certificate, which are 100% backed by physical gold stored in The Perth Mint's central bank grade vaults.
https://pmgt.io/