TaskbarX - TaskbarX gives you control over the position of your taskbar icons.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
TaskbarDock - TaskbarDock offers a few extra features to customize your Windows 10 taskbar.
Synapse - Synapse is a semantic launcher written in Vala that you can use to start applications as well as find and access relevant documents and files by making use of the Zeitgeist engine.
StartIsBack - StartIsBack returns Windows 10 and Windows 8 a real fully featured start menu and start button, behaving exactly like the ones in Windows 7. It's totally awesome and easy solution for your new Windows woes.
DockbarX - DockbarX is a standalone dock that groups and launches applications.