All of the above that you shared, although more specifically the first two - guides to different therapy techniques, video demonstrations of techniques. The research idea is great, but only as a means of directing you to the one that works best, or would work best for you in particular. The guides are the meat of the matter, so to speak. The only thing I would add is testimonials from real stutterers. And I think this is vital. Testimonials on as many areas of life as possible, work, schooling, relationships, etc. The trouble with stuttering is that it inherently makes us poorer communicators, and therefore less likely to pass on knowledge to others who may need it. Stutterers can be 'covert' or hard to identify given their condition only presents itself only when speaking, and even then may be hard to notice. With a condition that affects 1% of the population, and with all these other attributes mentioned, this is a recipe for stutterers to grow up in isolation from others with their condition, from those with invaluable information on how to live as a stutterer - that's a true shame. Realistic, truth facing, constructive testimonials - that's invaluable IMO.