Lessons in person or online. The field of early music is growing and guitarists are well-suited to trying out the lute and its many variants. The lute has a much larger repertoire than the classical guitar, spanning roughly 1500 to 1750 and many of the greatest composers times played wrote for the lute. The lute had/has a more firmly established role in ensemble playing, whether in orchestras or with small groups and singers ...
For lute students, I can recommend resources for hiring/buying properly constructed instruments (there are a lot of duds out there!) and I can teach the basics of an historical approach to the instrument and its repertoires as well as good technique.
Some more general info:
I'm a graduate of the Sydney Conservatorium of Music, with First Class Honours... My degree was in performance on classical guitar and historical plucked instruments (lute, theorbo, vihuela, baroque guitar etc)... My approach to technique is somewhat similar to Alexander Technique, but with more of an emphasis on practical physicalities directly related to guitar; in this regard, my ideas on technique come from the John Williams, Denis Azabagic tradition, as taught to me by noted guitar composer and pedagogue Phillip Houghton. I have some experience with guitar related injuries (eg tendinitis, RSI), using proper technique - leverage, balance - as a means of prevention and healing. I've taken many students through the AMEB classical guitar grades with good results.