Dogs Naturally Magazine has an audience of dog owners and professionals. They cover information on nutrition, holistic health care, homeopathy, herbs, TCVM, vaccines, and pharmaceutical controversies.  They seek writers who are holistic vets, homeopaths, herbalists, TCVM practitioners, natural pet healthcare practitioners, and other canine health experts.  Their pay rate is usually $50-$200 per piece.  Read their submission guidelines here:  https://www.dogsnaturallymagazine.com/contribute-2/