According to the Delphi Market reports

Stablecoin Supply By Chain:

1⃣ @ethereum ~$82B

2⃣ @trondao ~$37B

3⃣ @BNBCHAIN ~$9B

4⃣ @solana ~$1.8B

5⃣ @0xPolygon ~$1.8B

6⃣ @avalancheavax ~$1.5B

7⃣ @arbitrum ~$1B

8⃣ @optimismFND ~$700M

9⃣ @FantomFDN ~$450M