Below are some tech support popups that I got. I've found that hxxps://leftthat2.com will redirect you to fake tech support popups, that's how I get most of these.
Website Link: hxxp://lionsnine.stream/live/
Phone Number: 1-888-242-6953
Website Link: hxxps://mcx0x2.azurewebsites.net/
Phone Number: 1-877-274-4189
Special Notes: This appeared as "busy" when I tested it, so either it's not working or It's just busy right now, so I thought I'd still post it for you in case it indeed was just busy when I checked the numbers.
Website Link: hxxp://loamytwo.stream/live/
Phone Number: 1-888-242-6953, 1-855-613-3217 (see below for explanation)
Special Notes: Going to the link provided will also sometimes give you another tech support popup, it looks basically the same except the number provided, which is 1-855-613-3217 on the different popup