I don't know anyone doing good 1-5 day bootcamps, but I did recently do the multi-week live Kodeco (formerly Ray Wenderlich) iOS / SwiftUI bootcamp and really e

I don't know anyone doing good 1-5 day bootcamps, but I did recently do the multi-week live Kodeco (formerly Ray Wenderlich) iOS / SwiftUI bootcamp and really enjoyed it. I believe they also now offer an at-your-own-pace version as well.