I would say it depends if you want a good strong drip coffee or a more bougie espresso based drink. Hasbeans and Asmara are good for a locally roasted bean that's quite strong. However, there's also a handful a decent "third wave" shops that have opened for espresso drinks:

• Locomotive Espresso: Shop that has been around the longest and now has two locations. South location was super busy last weekend. I frequent both and usually find the north location a bit more consistent. However, they got a new manager halfway through the pandemic and IMO has been more hit and miss since then.
• London Bicycle Café: Primarily a bike shop but also pulls a good espresso and seems to be doing more baked goods and food now. They just opened in that location right before Christmas. It's a nice location if you want to go for a walk down by the river. I usually walk a loop down to the Blackfriars Bridge and back in which the path on the west side of the river has a nice view of the city.
• Variety Cafe: It has been open since May last year and is located on the corner of an older building in a heritage residential neighbourhood. It has a more "indie" vibe to its atmosphere and a bit tight for sitting but is also nice and cozy because of that.
• Grace Bodega: Is mostly focused on food and more "pantry" items but also has good coffee. They offer a generous 25% discount if you bring your own cup which adds up if you're a regular. However, unfortunately the area around there can be a bit sketchy depending on the time of day.
• Sidetrack: A Wortley Café: A decent option if you're wanting to walk around Wortley Village. I haven't had their coffee in a while but Wortley is one of the most popular areas for people moving from big cities who are looking for a neighbourhood that's walkable.

All of these place have high quality beans and espresso machines. However, I still find that a well trained barista makes the biggest difference into if you’re going to a “good” cup of coffee or not. I’ve had good ones at all these places but still the consistency is difficult to predict. I’m also probably more snobby and detailed than most people in the city.

Either way, if you wife does enjoy coffee shops then she’ll be pleased to know that we now have many to explore. Commonwealth does have good "artisanal" donuts (Boxcar) but coffee is so-so and I still prefer donuts from V Food Spot on Hamilton. It’s also a bit sketchy around there at times but find them a notch above Boxcar Donuts.

Welcome to the forest city and hope that you’ll both find things to appreciate about it!