There are many types of housing available for your bearded dragon including vivariums, aquariums and melamine cages although not all are suitable even if being touted for them. Specifically any enclosures that inhibit airflow, like glass tanks. For inspiration on enclosures and perhaps modifying those ideas to create suitable enclosures, check out the following videos.
Bearded Dragon Enclosures Worth Building
The King of DIY also known as uarujoey (that link is to his channel on YouTube). Inspiration and know how.
Uarujoey (the King of DIY) has some awesome tutorials on creating tanks from glass to wood, tiny to massive, you name it he shows you. They are based around aquariums (as in for fish) so just keep that in mind, especially because airflow is an exceedingly important element of any good enclosure. There are some other videos from YouTube as well that may be of interest to watch which will show you reptile cages built by other reptile enthusiasts. Generally some great creativity. But as you watch, remember to think about your bearded dragons need, these are just ideas on how to build your own cages and inspiration.
The above is by YoungTierney.
Last but not least, here is one from Blaze132442 with a homemade wooden enclosure, grand job he did to.