I want to buy Rotary Phones

landlines still support pulse dialing?

Amazon has dozens of listings for such phones. But most are available without prime.

Not sure about landlines still supporting pulse dialing but in US this does get sold: Amazon.com : Pulse to Tone Converter (Use Your Antique Rotary Dial Telephone On Modern Lines) : Telephone Products And Accessories : Electronics

Couldn't find one being sold here.

Most landline phones still have D to P switch under them. You can test if pulse dialing still works in your exchange or not by switching to P. (pulse mode)