Temupixel is a small network with a mix of chill building and fast PvP modes, so there's something here whether you want to practice mechanics or just play a relaxed Survival world. You can jump between FastBuilder, Bedwars 1v1, Sumo, Skywars, and Clutch & Reduce, with more modes being added over time.
FastBuilder is for bridging practice with replays and leaderboards, Bedwars 1v1 is quick duel-style bedwars, and Sumo keeps things short and sweaty in 1v1 fights. Clutch & Reduce adds a multiplayer clutching mode with PvP, so if you like movement, timing, and clean plays, there's plenty to mess around with.
There's also classic Survival for building, exploring, and playing together. Fireball Fight and Parkour are planned too, so the network is clearly still growing. If you want a server with a bit of everything and a focus on duels and minigames, Temupixel is worth a look.