who should be the new James Bond?

Go back to roots.

Have a James Bond 007 set in the first world war.
Seeing as James Bond, and 007, are both personas, we could see the first ever agent to hold the title working in WWI.

Maybe a teenage-to-twenties Bond, who was chosen from the new recruits who were signed up for service in WWI for a new secret service job to find intelligence on the Nazis and maybe kick some Nazi ass.

Might be overreaching myself, but I think Dean-Charles Chapman would make a great 1914 Bond.

I really just want you all angry and confused the whole time.

It's time for Henry Cavill.

I agree with Yoda. Who they choose depends on their vision for the character and the type of character they'd like Bond to be in the next iteration of the series. I would have liked to see Idris Elba do it. I quite like his series Luther. He has both the suave and sophistication required, and his looks and physicality fit the role. He also has the hard edge that someone like Connery had. A lot of people would have been happy to see a minority assume the role as well, but at 50 years old, he is simply too old now. They aren't looking for someone to be Bond for two or three movies. I think they want someone for 10-15 years, and Elba wouldn't be able to convincingly do that. Additionally, I think Elba is a pretty decent actor, and his career could go in many different directions, so his career may not fully benefit from being type cast by inhabiting the Bond persona on a serialized basis.

I'm not a Bond fan but I'd watch Elba as Bond.

I daresay the man with deadly cufflinks has the wherewithal to dye his hair if necessary.

Or, better, hire someone older and make that part of this incarnation of the character. In fact, most of the things I love most about the character are exactly the kinds of things an older Bond would have to rely more on: charm, ingenuity, strategy, clever use of technology, and would have to deemphasize the parts I find more boring, like yet-another-fist-fight.

I realize this is unlikely, though. They have every incentive in the world to go in the opposite direction. Here's hoping they go really young, a nascent Bond, at least, rather than just "Bond, but younger and handsomer," which is what I expect will probably happen.

Aaron Taylor Johnson was great in Bullet Train (2022).