https://www.vfxgrace.com/product/houdini-tutorial-volcanic-eruption/

This tutorial mainly focuses on Pyro simulation, and involves various pyro simulations like the volcanic plume, the volcanic bombs, sparse smoke in the air, shockwave smoke, smoke and fire spreading on the terrain, and smoke from rolling rocks, to give you an in-depth understanding of Pyro. Due to the step-by-step nature of Pyro simulations, it’s also suitable for beginners. Besides, there are more modules included, such as Height Field, FLIP simulation on lava creation, RBD simulation on terrain destruction, scene assembly, material, lighting, rendering, and compositing, etc, which gives you an overall knowledge of Houdini. In the scene assembly section, a large number of elements of optimization, processing, placement, complex lighting process, and rendering in layers, all of those can definitely give the learners who want to create epic large-scale scenes enlightening guidance.