Li-ion batteries for an iPhone X

My iPhone X needs a change of battery. It’s a launch phone and it’s boasting a whopping 576 cycles with 87% capacity left. I’m in no immediate need for a new battery but I will need one soon so I want to look now so I’m ready for it when I really need to change it.

I Fix It Canada doesn’t have this battery and it would be a costly nightmare to ship one up through I Fix It USA. Would anyone know of a credible battery company where I can get reliable iPhone and other Li-ion batteries? Ebay has never had a good battery to offer. Local repair shops give me batteries manufactured 2-3 years ago. I call for help here, ladies and gentlemen. Where In Canada can I get iPhone batteries?