Re-reading your question, for any Zumba training that you don’t want to travel, consider the option of hosting the training yourself. It’s pretty easy. I’ve hosted Zumba Toning twice, Strong by Zumba, Zumba Gold five times (and now I’m a CEC provider for that format), as well as over a dozen jams. When my kids were little and I couldn’t travel, I brought the trainings to me.
This advice works well for non-Zumba formats, too. I’ve hosted U-Jam, ViPR, Stroops, CrossCore, Bokwa, QiDance and QiForze, among others.