What are some alternatives?
When comparing esoTalk and TinyBB, you can also consider the following products
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
jforum - jforum is a Java-based discussion board software.
Forumbee - Forumbee offers community forums for discussions, feedback and Q&A.
Vanilla Forums - Build an engaging community forum using Vanilla's modern cloud forum software.
PunBB - PunBB is a fast and lightweight PHP-powered discussion board.
Directly - Directly provides on-demand customer service apps.