Should we need an NES Somari speedrunning leaderboard? The games list doesn't show the original so maybe we can have that and its other remakes, official or not.

Request the game yourself https://www.speedrun.com/knowledgebase/supporthub/request-game-or-series

You can always do runs of the game without there being an official board on the site as well, but yeah, you may request the game on the site, but keep in mind you'll become the sole moderator of the game.