Discord usernames are short, visible everywhere in a server, and one of the easiest places to experiment with glitch text without committing to anything permanent. Here are a few directions worth trying.
Subtle options
Tiny Glitch and Unicode Glitch both keep your name easy to read while still standing out from the plain-text crowd — good if your server has strict naming rules or you just want a light touch.
Bold options
Heavy Glitch and full Zalgo text turn a short handle into something that visually dominates the member list. They work best on names five characters or shorter, since the effect gets harder to read as the word gets longer.
Playful options
Crazy Text and Reverse Glitch are easy to read at any length and add personality without the horror-adjacent vibe of Zalgo — a good fit for gaming or casual servers.
Whatever direction you pick, generate a few variations above and try them in Discord's nickname field before locking one in — some servers restrict special characters, so it's worth double-checking first.