Alternatives to Super Grub2 Disk

EasyBCD suits Windows users configuring multiple operating systems or editing boot entries.

Launchpad

Launchpad suits open-source projects and community contributors who need code hosting, bug tracking, package building, localization, and project planning.

rEFInd suits users of EFI-based computers who want to choose among detected operating systems or utilities at startup.

Clover suits users who need to boot macOS, Windows or Linux on UEFI- or BIOS-based Macs and PCs.

Easy2Boot

Easy2Boot suits people who want to boot multiple installers, live systems or utilities from a USB drive.

It suits Linux users repairing GRUB, multiboot, UEFI, or BIOS startup problems.

OpenCore suits users looking for a bootloader with UEFI and BIOS support, multiboot, and boot-entry and boot-menu controls.

Plop Boot Manager suits people who need to boot multiple operating systems or devices, including USB or optical media without BIOS boot support.

SARDU MultiBoot Creator

SARDU suits people who need bootable maintenance media for Windows and Linux systems, including tools for recovery, backup, installation, and hardware checks.

Petitboot suits Linux and self-hosted environments that need multiboot menus, boot-entry editing, and network image loading.

QEFI Entry Manager suits users who need graphical or command-line control of EFI entries and partitions on supported systems.

Ventoy

Ventoy suits users who need a multiboot drive for operating-system images across Windows or Linux management environments.

Visor may suit Linux users who want a graphical UEFI menu with snapshot and OSTree options, and who use x86_64 or AArch64 hardware.

It suits users configuring Linux boot environments across FAT, network, CD-ROM, and ext2/ext3 media.

YUMI suits people assembling USB media for multiple operating systems, installers, rescue tools, or utilities.

systemd-boot suits people configuring a UEFI system with multiple boot choices and entries they want to edit.