By SOPHFRONIA SCOTT/Reported by Wendy Cole

Author Kitty Kelley has put it to the lot of them--Jackie Onassis, Frank Sinatra and most recently Nancy Reagan. So who would want to sit opposite her on a talk-show hot seat? Lots of celebrities, according to MCA TV president Shelly Schwab. The company, which oddly enough soon begins producing a show starring young Ron Reagan, is planning a syndicated talk show with Kelley as host, to debut in 1992. Schwab is counting on Kelley's exposure from the Reagan tome to snag a large audience. And he insists the guests have no need to fear: "The show is not going to be a TV version of her books."