For interesting and potentially forgotten TUIs, consider exploring Terminal Trove (terminaltrove.com) for an extensive list, including tools like trippy and nvtop. Additionally, Inconsolation (inconsolation.wordpress.com) offers reviews of hundreds of CLI and TUI programs, some great and others obscure. For a unique TUI environment, check out Twin (github.com/cosmos72/twin), which features a text mode window manager and terminal emulation.