Playnite, Arc Browser, Lutris, RetroArch, EmulationStation, Lakka, RetroBat, RomStation, D-Fend Reloaded, Daijisho, HyperSpin, Happy Chick, QuickPlay, Spark Console, RetroFE, GameEx, RetriX, GameHub, Pegasus, Maximus Arcade, RESET Collection (Emulator Frontend), BizHawk, D-Box, DBGL, Metropolis Launcher, Aurora Game Hub, Gelide, DOSBox Launcher, GR-lida are some alternatives to LaunchBox.