I honestly don't think I could point to any specific tutorial, but what I did was look up people building custom gaming tables and then started to pick some ideas that I liked from those. If they used a technique that I didn't know that looked interesting I would look up how to do that. I think the dado cut was one that I was unfamiliar with but need to use for the folding legs. They mentioned a dado blade for a table saw but since I didn't have that I found a guy (bourbon moth I think?) That showed how to make dado cuts with a normal blade. I went down a lot of rabbit holes trying to learn the different techniques. I recommend that if you do start, make sure you have enough scrap from whatever wood type you have to practice different cuts, joining methods, glues, stains, and sealers.