If you do not have $ELF, use Portkey wallet to buy $ELF with fiat and transfer $ELF from aelf mainchain (ELF) to aelf sidechain (tDVV). Lastly, swap $ELF for $SGR using AwakenSwap dApp.
Step-by-step guide:
On Web
On Mobile
Purchase $ELF through Portkey's "Deposit" feature.
Click "Buy Crypto" and input the amount you'd like to buy.
Select payment method to make payment.
Send $ELF from MainChain AELF wallet address to SideChain _tDVV wallet address.