OK I'm going to overdeliver on this request...

First, your 13" x360 charges at a maximum of 65 watts, so any recent charger that uses a USB-C connector and includes the magic words "power delivery" or "pd" and is rated at 65W or higher will work just fine. There are many that go higher, i.e. 100W, but you will not see any benefit from that (unless one day you buy a 15" or larger laptop), and it will just take up more space and weight. You don't need to search for one that uses your exact model name, or even Spectre, or even HP for that matter. Any will work if they include those magic words above.

I have probably half a dozen of these chargers (work, home, backpack, etc.) and by far my favorite is my Anker model 715 because it's so absurdly tiny and takes up virtually no space in my travel gear. It's $50 and will make you wonder why you ever carried around a great big charger for all those years.

If you're on a budget, here's a much cheaper one (Amazon brand). It'll work just fine, but you won't congratulate yourself every time you pull it out of your bag, as you undoubtedly will with the tiny one above :)[

As for cables to go with your charger, there are so many choices of length, color, construction etc. so again I'd recommend just searching Amazon for "PD charger cable" and choosing one you like. Here's one that Amazon suggested for the charger above (again from Anker, who makes good gear). Again, just choose one that's certified for 65W or 100W and says "PD" or "power delivery" in the title.

I love to blow my money on unusual, dorky gizmos, so I liked this charger cable that actually shows you the current (in watts) being consumed by your device as it charges. It's fun to see how much my phone draws, my laptop draws, my headphones, etc. There are lots of cheap Chinese cables that do this and I would call it more of a novelty item but what the hell.