Those parts appear to be hard to come by. There's one that looks very similar, but it's connected to the motherboard by a cable rather than being soldered on. It's unclear whether it would be usable or not.
[link|https://www.ebay.com/itm/225525240903|Razer Blade 15 RZ09-0328 RZ09-03286 DC Jack Socket Charging Port Power Cable|new_window=true]
There's one guy on eBay who's gone ahead and used a 3D printer to make up his own version of that connector.
[link|https://www.ebay.com/itm/155365930796|Razer Blade Charging Port - 3 Prong, Power Jack (Pack of 3)|new_window=true]
Wouldn't be my first choice, for a couple of reasons. First of all, the ends of the rods he's using as contacts haven't been burnished or rounded, so I'm afraid they'd tear up the jack you try to plug them into, and secondly, he wants $100 with shipping! Yeah, that's a no for me.
Didn't find anything on AliExpress, but I'll poke around some of the darker corners of the internet and see if I can come up with anything else.