Michael Keaton is in a great place now. He's been better in the past 5 years than during the 80s and 90s.
Bill Nighy has a similar acting style, but within that he's given some great performances.
I'd also say that Andy Garcia has improved a lot in this century. Don't know if he'll get a chance, but he has potential.
With Another Year and Phantom Thread, Lesley Manville is certainly one to watch.
Sigourney Weaver isn't done. I can feel it.