eGlow is a plug-in that allows you to change your glow in game. This basically means the glow effect will be added to your player and you can change its colors and make patterns with it. (No particle effects) This would be a great plug-in to be added.
Link: https://www.spigotmc.org/resources/eglow-1-9-4-1-14-x-glow-cosmetic-respects-eula-mysql-support.63295/