I’m not Scottish, but, yes, Scotland could in theory join the EU under Article 49, although would have to do quite a lot to align. I get the sense the best settlement for Scotland, though, would be for the UK as a whole to stop electing fuckwits to Westminster, to rejoin the EEA (at least) and the EU (eventually), while increasing devolution (not only to Scotland/NI/Wales, but also to English regions), along with reforming the upper house so representation is split broadly evenly between the four nations (although I’d argue it would make sense to first split it evenly between non-partisans and politicians).
Sadly, I suspect the UK will continue electing fuckwits, in which case good luck to Scotland. Breaking away will make a lot of sense, but I do hope everyone on the “let’s scarper” side recognises how painful and divisive such an event will be. A shit-ton of loser’s consent will be required. (Wales did quite well with that during its vote on the assembly. The Brexit lot, though…)