There's a really good convention that occurs in Halifax every year called Hal-Con. It's a mixture of everything really; anime, tabletop gaming, video games, comics, sci-fi, fantasy, etcetera. It's been going on for the last five years and keeps getting larger. Highly recommend attending if you can. There is also a new one starting this year here in Cape Breton called Caper-Con. It should be good; hopefully.
To list a few good animes to watch; Death Note, Attack on Titan, Hellsing, Full Metal Alchemist, Slayers, and Trigun.
Anime North is probably the bigest in the GTA.. there are a few others, i think out by hamilton, etc.
Fan Expo, usually has a ton of stuff too.
Been years since i have gone to AN though.
After getting married, a kid, etc.. no $$ for the stuff like that 😛
I would spend WAAAAY to much.
Went to fan expo last year.. had to hold myself back from spending too much money 😛
(did get to meet mike mignolga, creator of hellboy though)