Of those choices I would say Buick for mileage and age. Probably many parts around if needed at junkyards. Camry also should be pretty easy to get parts. The higher mileage doesn't scare me if I knew how it was maintained and all checks out. It is almost 2x his age.
As others said a slower 4cyl to learn is good. Whatever you get I would put an investment into 4 true winter tires on spare rims to give him best option in the "oh crap". Same thing for the 3 seasons, best wet versions you can afford.
Search my posts for
streetsurvival.org. I have links to pictures/videos. Not the normal drive around town driving school version.
What is price range that you are willing to do? Maybe
@macarose has some options that he stumbles across or check his
Facebook.
My son is 24yo, he started with a '04 CRV handed down with high mileage, not best maintained, gave him some good experience. We upgraded radio, speakers, tires. It needed some extra work when AC seized. I bought him a 2010 Forte for $2500 with about 140k from my captain at firehouse in July '19. That got him through the last couple years of college and through PA school. Yup he wanted more but admits that the money, size, pre loved scratches were perfect for school parking lots. We also put better lighting and better tunes in. It's at 189k now.
My daughter is 21. She got the '04 CRV until the tranny went at almost 280k. My sister gave her an '08 CRV 4.5 years ago that kept dying said keep it if you can fix it or junk it. They didn't listen to me on what I thought it was but her son wanted something different anyway. Was pretty easy and not expensive fix. Again did a good radio/speakers/amp/small sub, better lighting, tires. She loves it, has put on about 35k.
There are definitely manual transmission Accords out there. New driver I'd get a 4cyl one, the 6cyl ones are quick. Both my kids drive my '17 Accord 6MT 4cyl if needed or they want to. My '07 Sonata was a 5MT but the programming and drive by wire with dual mass flywheel made it more difficult to shift/drive smooth. They both learned on it. Even I would stall randomly it was just odd. It lasted me 14 years and 220k though and was very comfortable and not expensive.
Acura ILX in Denver with Manual transmission
73k mile 2013 Forester in Oregon
$4700 2016 Jetta
Cars.com has some decent search choices for distance, years, price, and for me transmission (but do need to verify in pictures etc).