If you are specifically looking for an AM credit card, then you basically have five choices:
two BMO MasterCards (Air Miles MasterCard for $0 annual fee, and World Elite Air Miles Mastercard for $120 annual fee, waived the first year) and
three Amex cards (Air Miles $0 annual fee, Platinum $120 annual fee, and Reserve $299 annual fee). Not sure I would recommend any of them as a card for everyday spend, but if you are invested in Air Miles, then one three of the annual fee cards may be useful to you. You would need to list out your spending in each category and at Air Miles partners, and see what kind of a return you would get, net of the annual fee.
As for non-Air Miles travel cards, I personally like two cards (listed below). They fit my spending patterns, and I get way more value out of them (along with other no annual fee cards that I hold) than I pay in annual fees (even this year, as I managed to travel to WDW in February before the pandemic hit).
The Scotia Passport Visa Infinite card. It earns 2 points/dollar (i.e., 2%) on grocery (excl
Walmart), dining, entertainment (e.g., Disney park tickets), and transit (e.g., buses, subways, taxis, etc.) in Canada and abroad, and 1 point/dollar (i.e., 1%) everywhere else. The points can be redeemed on any travel charged to your card (no need to book through Scotia) at 1 cent/point. You also get six lounge passes (which can also be used at select airport restaurants for a $42 credit each pass), a comprehensive suite of
travel insurance, and the card doesn't charge forex fees, so it's a good card to use in the U.S. and elsewhere outside Canada. The second (i.e., supplementary card) is free. And it comes with a 20k point (worth $200) sign-up bonus if you spend $1,000 on the card in the first three months. Now, is all that worth (to you) the $139 annual fee? You would have to calculate the return based on your spending. (You can also get the annual fee waived if you keep a minimum balance in one of their chequing accounts.)
The HSBC World Elite MasterCard. It earns 6 points/dollar (i.e., 3%) on travel charges (e.g., airlines, hotels, car rentals, etc.) in Canada and abroad, and 3 point/dollar (1.5%) everywhere else. The points can be redeemed on any travel charged to your card (no need to book through HSBC) at 0.5 cent/point (though you need to redeem a minimum of 25k points, i.e., $125, and then in increments of 10k, i.e., $50). You can also transfer the points to certain airline miles (British Airways, Singapore Airlines, Cathay Pacific) if you so desire. You also get a $100 travel enhancement credit (which can easily be converted to cash), a comprehensive suite of travel insurance, and the card doesn't charge forex fees, so it's a good card to use in the U.S. and elsewhere outside Canada. The second (i.e., supplementary card) is $49 (I think). And it comes with a 100k point (worth $500) sign-up bonus if you spend $5,000 on the card in the first six months. Annual fee is $149 annual fee, waived for the first year. (I'm not sure if you can get it waived with a a minimum balance in one of their chequing accounts, but I think they will waive the supplementary card fee.)
As I mentioned, those cards fit my spending patterns, but may not fit yours. But one (or both) of those cards, coupled with your PC WE MasterCard may provide you more value that just a PC WE MasterCard.
By the way, PC Financial is starting to downgrade people from the World Elite version of the card if they are not spending $15k annually on the card (similar to what Rogers announced for their World Elite MasterCard), so keep that in mind.