AW Awards
https://www.awwwards.com/websites/bootstrap/
bootstrap Expo
http://expo.getbootstrap.com/
Bootstrap Bay
https://bootstrapbay.com/blog/built-with-bootstrap/
Color Lib – Bootstrap portfolios
https://colorlib.com/wp/bootstrap-portfolio-website-templates/
Handy Bootstrap pieces and parts on tutorialize
https://tutorialzine.com/2015/06/12-time-saving-bootstrap-examples
Flex Order in bootstrap
https://getbootstrap.com/docs/4.0/utilities/flex/