American Express Cobalt: 45,000 point (!) offer
Expires May 5, 2021

https://www.americanexpress.com/ca/en/credit-cards/cobalt-card/

Minimum spend requirement: must spend $3,000 in first 3 months, and also $500 in each of the first 12 months, to earn all of the 45,000 available bonus Membership Rewards Select points.
And, 5x earning on groceries & dining.

"This offer is only available to new American Express Cobalt Cardmembers. For current or former American Express Cobalt Cardmembers, we may approve your application, but you will not be eligible for the Membership Rewards points offers available in the first 12 months of Card Membership."