Plenty of decent country before the 1990s. Johnny Cash, Loretta Lynn, Dolly Parton, Charley Pride, Ray Charles, the Statler Brothers, Mel Tillis, Roy Clark, John Denver, Willie Nelson. Later country artists with pop sensibilities like Kenny Rogers, Garth Brooks, Shania Twain, Reba McIntire.
I'd argue that Roy Clark ranks as one of the most talented American guitarists/banjoists of the 20th century, easily in the same class as Jimi Hendrix or Prince.
Today, look for specific types of country music (e.g. Bluegrass) to find more authentic stuff, or just bite the bullet and listen to stuff with different genre labels like "Americana" and "Folk". A lot of good modern country music ends up in those genre classifications because the marketers can't figure out how to fit it into the stadium country ecosystem.