What to 'upgrade' to from a ThinkPad T470?

My ThinkPad T470 is beginning to show its age I think. It's had a
replacement keyboard and a replacement screen in the last couple of
years and now (see other thread) one of its disk drives has failed.

So I'm thinking about what I might replace it with.

I've gone through quite a few ThinkPads, started with a couple of
X201s, a T430 then the T470.  My wife now has an X13 which is quite
nice.

My eyes are ageing so a slightly bigger screen might not go amiss,
I'll go for refurbished as usual (can't afford a new computer),
budget is probably in the £200 to £400 sort of area.

So, what's good for Debian/Linux in the newer ThinkPad models? Are
T15/P15 OK, will Debian cope well with the Nvidia graphics on the P15
series? ThinkPad P15v seem remerkably cheap compared with others, is
there some issue with them?

Are there any other reliable laptops that work well with Debian (e.g.
Dell models)?