Quality Hackintosh tutorials for El Capitan include: Install OS X El Capitan on Supported PCs - How to install OS X 10.11 El Capitan on any supported PC from the legendary tonymacx86 using the site's own Unibeast 6 software tool.
The site has troubleshooting guidelines if the installation does not go smoothly, also.
Install OS X El Capitan with Chameleon - A basic tutorial to install OS X El Capitan (10.11) using the Enoch version of the older Chameleon bootloader.
Install OS X El Capitan on PCs with Unibeast - If the "official" tutorial from tonymacx86 isn't as easy to follow as you would like, you might prefer this installation guide from Mac Breaker, which includes step-by-step screenshots of the process.
Build a DIY Mac mini - From Macworld, the author's personal experience of building a small PC and installing mac OS Sierra using other tutorials.
Building a Hackintosh Pro - A helpful tutorial to build a powerful tower desktop Hackintosh from Dan Counsell.Building a GTX 1080 Ti-Powered Hackintosh - A in-depth two-part tutorial that covers hardware selection with a focus on video editing as well as mac OS Sierra installation. Always Up-to-Date Hackintosh Guide - A noble effort to write an "always up-to-date" guide to building a Hackintosh from Lifehacker.Ironically, it is not up-to-date, but it covers hardware selection and construction as well as installing mac OS Sierra.Be sure to see the Hackintosh video tutorials, too. A number of quality tutorials to install this version of the operating system on a PC include: Install mac OS High Sierra on Supported PCs - How to install mac OS 10.13 High Sierra on a supported computer from the well-known tonymacx86 using the site's own Unibeast application.
The site has troubleshooting help and hardware recommendations for building your own system, as well.
For maximum performance, be sure to confirm hardware compatibility with HVEC before buying parts for a new Hackintosh.