Hi @fegelein3290 ,
Depending on your exact model variant you may have to buy a complete keyboard/top cover (which includes the touchpad) as it may come as a complete module and not separate components.
Here’s the [http://h10032.www1.hp.com/ctg/Manual/c06612241.pdf|maintenance and service guide] for the laptop, taken from the support [https://support.hp.com/us-en/product/hp-envy-15-ed0000-x360-convertible-laptop-pc-series/32552495/model/32552497/manuals|webpage].
Go to p.17 Item #2 to read the ''Note:'' regarding whether you can get separate components or you need the complete module.
Usually the part number is found somewhere on the underside of the top cover assembly or on the keyboard/touchpad if you wish to verify what you have.
Once you have determined what is applicable to your laptop, search online using the appropriate ''part number only'' to find suppliers that suit you best.