Morocco is spitting distance from the Canaries, but who would want to go there?I love the canaries I've visited many times mostly gran canaria and it was as a result of being offered a job out there that started me fulltiming.. my first long trip in 2018 was meant to take me there but while on route through Spain I was informed the place I was meant to be working had shut down and that led me to just travel around Spain and Portugal for a year instead. And here I am 7.5 years later lol.
I've not taken the van there but I have friends who have but really need to do all the Islands to justify the ferry cost to one of them from Spain..
And that's more expensive again .. and would still have to go to Morocco to extend that 90 days .
At least with Greece there's Turkey and further afield georgia Azerbaijan Almeria etc to explore . Its a pity Bulgaria and Romania are also now in shengen as they're also good to explore but again cold in winter