Anyone here have new ideas for variants but don't see any forums to put their ideas? Put them here!

Here is some of my ideas: now obviously everyone else can share their ideas as well:

4 player Crazyhouse: 4 player chess normal rules, captures pieces can be dropped back on the board, although with some limits: Pieces (Knights, bishops, rooks, queens, or kings (these kings won't lose you the game if captured)) can only be placed within 7 ranks of yourself, and for pawns only 4 ranks.

Center Back Rank Defense: Kings can still be captured to win, but also if White is able to land a piece, or pawn, on d8 or e8 without being able to be captured: white automatically wins. Black automatically wins for a piece or pawn not being able to be captured on d1 or e1.

Anyways those are my ideas right now.