OK, I realise that these won't be universally popular, most people around here aren't that into the sort of 'technical' paying that I like, but these are three videos that I constantly come back to. I will never be able to play this stuff, but I never fail to get joy and inspiration from these, all of which I have posted before over time.
Per Nillson improvising: Mind blown by note choices, Far out but soooo melodic, plus Per looks so cool!
Alex K - Marching out Jam: Insane speed of runs when he gets going
Igor Paspalj - Full throttle: Superb accurate playing with an exciting composition
I wish I could get my head around improving my playing based on these, I'd love to sit with a teacher (in person, not on screen!) and try to learn a bit about what's going down. Still, I'm an old dog and I know my limitations!