There is created in discord, the separate channel "#over-the-counter-market": https://discord.gg/t9XjDp
So, anyone can exchange SatoriGold (SAU) for ANY CRYPTO, there, throught "Private Messages"
But, no any warranty, and some users can be a scammers.
Therefore, it is recommended to process a large deals - by a small transactions.

Also, for bitcoin-based altcoins (where 2-3 multisig addresses is supporting),
there is possible to process the safe escrow-transactions with garant (which supporting the chargebacks).
In this case, there is possible to transfer altcoins, by "buyer" into the "2-3 multisig-address",
and noone can not spend that coins, and scam the another side.

Because, only 2 signatures from 3 is allow to spend the coins from that "2-3 multisig-address":
1. "buyer+seller" - if deal processed, "buyer" received the coins,
and signed the "seller"'s transaction from this "2-3 multisig-address", or give for "seller" his "buyer"'s private key.
In this case no need to ask "garant" to do something.
2. "seller+garant" - if "seller" sent his coins for "buyer", but "buyer"
did not sign the "seller"'s transaction from this "2-3 multisig-address",
or did not give for "seller", his "buyer"'s private key.
In this case, "garant" can sign the "seller"'s transaction from "2-3 multisig address",
or give his "garant"'s private key for "seller",
after verify the proofs, that "seller" did sucessfully sent the coins for "buyer".
3. "buyer+garant" - if buyer sent altcoins for "2-3 multisig-address", but did not receive nothing coins from "seller",
and "seller" is not responding a long-time, the "buyer" can turn back his coins, from "2-3 multisig-address",
after "garant" sign the transaction from this address,
or give for "buyer" his "garant"'s private-key,
to let "buyer"'s sign his transaction, himself.

But noone, alone, can not spend the coins from "2-3 multisig-address", no "buyer", no "seller", no "garant".

Sometimes, @username1565, in discord, can be a garant for the bitcoin-altcoins escrow-transactions,
or also, you can select any another garant for escrow-transactions (bitcoin/altcoin),
on this forums, from this list: https://bitcointalk.org/index.php?topic=855778.0
or this: https://bitcointalk.org/index.php?topic=5083258.0
Also, see their fees.

Maybe, for large cryptocurrencies, like bitcoin/litecoin/dash/etc...
there is already exists some online garant-services,
which allow to use escrow-transactions, AUTOMATICALLY.
But for another altcoins, it can be processed manually.