This is lettering by Corina AKA Cocorrina, not a font. I would advise hiring a lettering artist if you want a natural handwritten look. If you must use a font, tell us more about what you like about the script so we can best advise you. The irregularity of the strokes? Try Rollerscript. The rough marker/brush edges? Try Handelson. The ligature that keeps occasionally keeps pen on paper? Try Suomi Hand Script.
Recently did some work for an agency that was using this typeface; it might work as a subsitute if lettering would break your budget: