FabricWarps

A server-side Fabric mod that adds /warp command-set.
Works for Minecraft 1.16.2+ (snapshots not fully tested)
Requires FabricAPI

Commands

/warp ＜destination＞ - Teleports you to the destination

/warps - Alias for /warps list
/warps list [＜dimension＞] - Lists all warps for the specified dimension or all dimensions

OP level 2 permissions

/warps add ＜name＞ [＜x y z＞ [＜yaw pitch＞ [＜dimension＞]]] - creates a new warp destination using your coordinates/rotation/dimension if they're not provided
/warps warp_player ＜player＞ ＜name＞ - warps a player to the specified warp destination
/warps remove ＜name＞ - removes a warp destination with the name /warps config [＜name＞ [＜value＞]] - sets or gets a config value

Configuration

Can be found in config/FabricWarps.properties.
Configuring through commands automatically rewrites the file.

cooldown - The minimum time between warping. Default: 15 (seconds)
bossbar - Whether to enable the boss bar indication for standing still, if set to false will use action bar for time. Default: true
stand-still - How long should the player stand still for after accepting a tpa or tpahere request. Default: 5 (seconds)