Let Me see if I can help you with that problem,Likokonut. How many Parts/outputs/jacks do you have on your MacBook early 2016? If it is only one, then it is USB-C only. And does Not support thunderbolt three. No, all you need is a monitor that supports USB-c and/or display port, mini display port or HDMI 2.0,, pretty much any monitor that supports those things should work, Even better if it’s Mac compatible e.g. says works with Macs. Lg makes one.
Actually, Likokonut, you might be better off erasing, D authorizing and showing your current MacBook as it isn’t very powerful. Seeing as how you are A university student you should be able to get an educational discount *on either a refurbished or new MacBook or MacBook Pro or iPad Pro which ever works best for you, you might even be able to trade in the MacBook you have for credit on a new or refurbished one.
john brine
*With valid educational ID of course