Most ubud yoga studios are all crystals and chakras. Radiantly alive focuses on actual asana practice - though I'll admit the energy has shifted over the years as it's gotten more popular. Drop-in hatha and vinyasa classes 150k, taught by certified instructors who know anatomy.

Clean studio, good props, classes in english. The energy is more grounded than performative, even if it's not quite the local vibe it once was. Early morning classes (7am) tend to be locals and long-term residents. Evening classes get more tourists but still maintain quality standards.