bochs is described as 'Bochs is a highly portable open source IA-32 (x86) PC emulator written in C++, that runs on most popular platforms. It includes emulation of the Intel x86 CPU, common I/O devices, and a custom BIOS'. There are more than 25 alternatives to bochs for a variety of platforms, including Windows, Linux, Mac, Android and BSD. The best alternative is VirtualBox, which is both free and Open Source. Other great apps like bochs are QEMU (Free, Open Source), VMware Workstation Pro (Paid), VMware Workstation Player (Free Personal) and KVM (Kernel-based Virtual Machine) (Free, Open Source).
VMware Workstation Player builds on the industry leading foundation of Workstation Pro, and delivers a streamlined user interface for creating and running operating systems and applications in a virtual machine.
KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.
Parallels Desktop gives Mac users the ability to run Windows, Linux or any other operating system and their critical applications at the same time as macOS. Parallels Desktop is optimized for Intel and Apple M1 chip.
Xen.org, home of the Xen hypervisor, the powerful open source industry standard for virtualization. It is a native (bare-metal) hypervisor providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently.
Portable-VirtualBox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation. It unpacks and adjusts the paths and configuration of VirtualBox so it will run portably.