It turns out that Tactics Ogre: Reborn for Nintendo Switch supports keyboard and mouse
The strategy version of Tactics Ogre: Reborn for Nintendo Switch, it turns out, has keyboard and mouse support.
Here's What We Know
This was discovered by a Reddit user while digging through the controller configuration. Keyboard shortcuts are displayed in the menu, allowing the player to set two keys for one action. The keyboard and mouse can be plugged directly into the USB ports of the Switch dock. According to u/solwhitehorn, while playing Tactics Ogre: Reborn, the USB dongle and Dell wireless keyboard and mouse worked properly.
Tactics Ogre: Reborn is one of the few games on Switch that fully supports keyboard and mouse control. The list of such games is not very long, here are some of the most popular ones: Fortnite, Quake, the original DOOM and DOOM 2. Also, mouse and keyboard control is supported by Nintendo's Game Builder Garage, which greatly simplifies the drag-and-drop process when creating programs.
Source: gamerant