Insight is a information mod that includes 3d tooltips/widgets/GUI's (what ever you want to call them) to the game with multiple features:
TargetHUD (With an option for smart positioning, which dynamically positions the HUD for optimal visibility based on your view angle)
TargetHUD helps with entity information, specifically health
Dropped Items
Dropped Items is useful in cases where you dont know what the block is on the ground (maybe a modpack, or a vanilla item that is dark or unrecognizable), its faster than picking it up
Bed Timer
Bed Timer helps you know when night time comes
And more, insight comes with customization, via config tab
if you are on Fabric i highly recommend Mod Menu to configure Insight
Insight comes in multiple mod loaders, and (soon) multiple Minecraft versions for universal access
Insight is still in early beta, expect some bugs!