Most Canon camera recommendation for vlogging: good autofocus, 1080p 60fps video, low cost

Today I’m shooting my videos with Canon 70D which is totally decent. Recently, I started thinking about widening the spectrum of scenesin my videos and I realized the camera limitations.

Namely, with 70D I can not shoot slow motion videos (defined as 60fps in 1080p resolution).

What is the camera body I could upgrade to for getting the following things:

  • same or better auto-focus in video mode as in 70D;
  • 60fps in 1080p resolution (or better 4K);
  • least expensive (say, budget under $1000 or $1500 USD for a new piece)?