Edinburgh’s way more touristy; Glasgow has cool shit but you need to know where you’re going, if that makes sense.
Like, you can just sort of wander around Edinburgh and see cool shit. There’s the old town, the new town, the Grassmarket, Dean Village. Super touristy and historic. Glasgow doesn’t have shit like that.
Pub scene in Edinburgh is also way more touristy, but there’s more going on as a result (to attract the tourists). A lot of places in Edinburgh really camp up the Scottish-ness which can be kind of annoying but tourists lap it up. I personally think that Edinburgh is better for food (I have lived in both cities) but that’s not to say that Glasgow isn’t good.
Glasgow has a better music scene for sure. All the decent bands, singers, DJs etc go to Glasgow but of course that doesn’t mean there’ll be any good acts there when you visit. Glasgow also has better shopping (according to the girls I know - I have absolutely no interest).
Generally when someone says they want to visit Scotland I recommend Edinburgh and a trip up into the highlands to see some country and that’s it. Go up to the Isle of Skye or somewhere like that.
I can make some more specific recommendations for things to do in Edinburgh if you let me know the sort of shit you like.