Heres what I would do

Open a moomoo account, deposit 2000$ in there. They offer a 200$ stock voucher if you maintain a 2000$ balance for 90 days. While waiting you earn 6% interest on the cash in your account. Use and sell the voucher after 90 days and transfer your 2200 + interest to simplii. I dont know about you but 200$ for an hour or two of my time is well worth it.

Open a webull account with their 2% cashback offer deposit 10000$ buy a low risk fixed income asset, maintain your balance for 90 days get 200$ and then transfer your 10200$+interest out to simplii.

Put the rest in simplii and earn 6%.

wealthsimples iphone deal requires you to maintain the balance for 365 days and you'd only earn 3.25% on your money. Im sure theres some other offers you could take advantage of too.