If for some reason a student does not find a suitable teacher, he need not lose all hope. Most of the teachings are available in written form. These days the teachings are also available in audio or video form, which is as good as being with a teacher and is perhaps better than books in terms of sensory satisfaction. There is tons of material on the internet in various formats. Some teachers are also available via emails or other communication apps. The information is widespread, in fact, there is an excess of it. It all appears voluminous but most of it is repetition of the same few ideas, interpretations, and reinterpretations, commentaries and perspectives.
This was not the case in past, when such information was held secret. The world has changed and the teachings are no more hidden in secret places, meant for special people only. Most of them are freely available to anyone who is interested. So why don't people simply read those books etc. and get rid of their ignorance and suffering, why are the majority not free? Because just like a teacher, books only point towards the knowledge, they do not transmit knowledge, they transmit only information, written symbols. Knowledge requires a direct seeing, an experience. We have seen that merely gaining knowledge does not do much either, the clouds of habitual ignorance cover up any faint light of knowledge gained via reading very quickly.