Lots of methods work, but they each have their own pros and cons. Different yields, different risks, different costs, etc. There is no method that is perfect, IMHO.
That said, shroomscout's guide is good, though personally I found 90sm's videos to be similar content but easier to digest. ( He also had a video on fruiting from the bag but I've never tried it)
I don't know your situation but I know a lot of people on this path are doing it to try to deal with shit they haven't otherwise been able to deal with.
If that describes you, then my advice is to inoculate a few bags using whatever method you feel like you can handle right now.
If you have a normal size syringe, you can do several bags of UB and still have a lot left over to try again.
Then, while you're waiting for growth, keep learning. If it doesn't work out, figure out what went wrong, fix it, and try again.
Of course it doesn't look like one... They're robots in disguise.