The issue, as I understand it, is that old* phones need the 3rd "bell" wire connected. This wire actually taps off from one of the two main wires and some filters simulate this, so I suggest you look for one with three pins connected.
Whether the product descriptions will be up to that I don't know. (In my experience as an IT tech, Amazon IT product descriptions are often inaccurate to the point of being comical).
*I'll also point out, because it's not been made clear, but this issue only applies to old phones, so it might be worth waiting and seeing if your phone works without it.
I recall the scenario @WSH described, but I can only remember one incident, so I think you'd be unlucky to pick one that doesn't work. But having said that, I wouldn't have thought those phones would be an issue. I guess the only way to find out is to try one.
If you're on Facebook, maybe ask locally if someone has one spare, there's probably dozens lurking in drawers. Or if you want to message me your address, I'll pop a new one in the post. I can't guarantee it will work but won't cost you anything to find out.
@Trader1 I have deleted your post as you really don't want to be posting your home address details on a public forum viewable worldwide!
I suggest you use the DM function directly to @Anonymous
I don't know your extension set up but when I got BT full fibre with Digital Voice I connected the phone socket on the BT hub to the redundant Openreach master copper landline socket which fed all the extension points in the house & every phone worked & rang.