As someone who lives in Toronto, the first thing I'll say is that you should be prepared for diversity. Toronto is part mini-New York part cultural mosaic of the world. You're going to find all kinds of people who think all kinds of different things. Whether you're interested in local church gatherings, sex clubs, tech and computers, competitive dancing communities, etc you got it. Toronto has tons of opportunities for all kinds of people who are into all kinds of different things. It's also one of the more expensive cities in the world, and even the most minimalistic lifestyle won't allow you to make less than $2000 a month if you plan to live in the city and hope to have even a half-decent place to live regardless of the 1960s decor.
That being said, if you're well off and are coming in with $$, Toronto will be a playground. Incredible restaurants, great sites, tons of summer festivals. If you like cannabis, this is the right city for you as 6/10 people can point you to the direction of the local dispensary. The night life has a lot to offer, and, while it's not the kind of city that typically stays up past 2am, you can definitely find the right (or wrong?) people to keep the night going.
Toronto is a very big city, and because of that city crime tends to follow. It's not unsafe, and there are no open-carry laws here so little-to-no guns are to be expected, but it's a city. And with a big city comes all kinds of people, including the occasional creep or weirdo. Stay smart and you'll be plenty safe.
Toronto is surrounded by something called the Greater Toronto Area (GTA). The GTA is made up of cities that immediately surround Toronto and add a lot to what you're able to do within a 30-60 minute drive. If you include these cities, Toronto is bigger than New York by a landslide. You'll never run out of things to do if you're interested in trying new things. Mississauga has indoor skydiving. Scarborough has some great beaches. Vaughan has Wonderland, one of the biggest theme parks in the world, just to name 1% of the stuff.
Certain areas of Toronto are split up in ways that cater to very specific areas. There is definitely a chinatown, little italy, etc. They're quite easy to spot, and quite delicious to visit. Kensington Market is a little hippy gem for all things youthful and is a must visit for anyone coming to Toronto, you'll never know what you'll find there.
idk I tried to make this comprehensive without making it too boring to read. I hope you have a great time in the city, perhaps we'll bump heads one of these days. Oh yeah, it also still gets painfully cold in the winter. Not as bad as the memes portray, but still pretty bad.