The a3CRV pool on Curve (Polygon) is probably the best and safest place to earn yield on your stablecoins. The portion of your deposits that are not actively utilised are deposited on Aave (Polygon) under the hood where it earns interest.
1. Deposit your stablecoins in the a3CRV pool onCurve (Polygon)
2. Upon depositing your stables here, you will get an a3CRV LP token. Go to Beefy Finance (Polygon) and Deposit the a3CRV LP in the vault shown below.
3. Take the Beefy vault tokens and create a vault in and borrow $MAI.
4.a. Swap the $MAI back to USDC
4.b. Swap the $MAI back to whichever stable (DAI,USDC,USDT) gives the best rate
4.c. Swap the $MAI into the stablecoin that has a deposit bonus in the a3CRV pool on curve (Usually DAI as supply is lowest)
5. Take the newly acquired a3CRV LP tokens and deposit again in Beefy Finance
6. Repeat the steps as often as possible to create an infinite loop.
Please be aware that this strategy is not available yet and may be possible if:
1. The governance vote to add Beefy vault tokens pass in the QiDao governance forum
Source: https://vote.mai.finance/#/proposal/Qma3NYomcoCnLriq6zuBpS22eFtTb52M8VhmUDxSXAgYz6
It will most likely pass:
2. QiDao must allow $MAI to be minted on the Beefy a3CRV vault token
