Lending interest rate comes from the borrowing interest rate that leveraged yield farmers pay for borrowing the assets in the lending pool to yield farm.
There are 2 simple steps to lending assets on Alpha Homora v2.
Go to Earn page and click Supply on the asset you want to lend
2. Specify the amount you want to lend
On the Earn page, lenders can see a number of assets that they can lend (the above images show only a sample of them). The supported assets on the lending side are correlated to the assets that yield farmers can take leverage on.