There are myriad ways to do woodworking joinery, and entire books on it:

https://www.goodreads.com/book/show/4942341-woodwork-joints

https://www.goodreads.com/book/show/17572619-the-complete-gu...

Note that modern adhesives (esp. if coupled with the judicious use of a bit of hardware) are quite strong/lasting so long as they are appropriate to the purpose.

Just making a couple as a test/prototype will go a long way towards building skill and confidence.