Paddling NZ and would love to meet up with locals

I will be visiting the last 2 weeks of November starting in Queenstown and making my way to Auckland and I would love to try as many grade 3-4 rivers as possible!
Any suggestions or people that would like to paddle together, love to meet up with you! 25+ years of experience as both a paddler and river guide, so please join me or atleast give me some wonderful suggestions!