For those interested in big board variants, Chu Shogi is now

Shogi

I'm not sure if this has been shared already but Stephen Tavener's program AiAi is a Java-based general game playing engine. Recently a lot of Shogi variants were added to AiAi. Some

How to Play Chu Shogi (with internationalized pieces) : r

Modified/redesigned Hidetchi international pieces : r/shogi

If you're a beginner looking to buy a Shogi board but don't know

Does anyone actually play this variant? (Taikyoku) : r/shogi

Shogi Explorer: a new multi-platform Shogi GUI. : r/shogi

Reddit - Dive into anything

I made my own shogi board out of cardboard and paper! : r/shogi

Tendo Shogi Koma - The Craftsmanship Behind Japanese Chess. Learn