I want to buy a daydate gold online and need help

[moment1]

Hello,
Im very new to the watch world but fell in love with gold watches after trying a few.
In particular the Day Date president yellow gold.
So i would very much appreciate your comments on these, as im also looking for value (or rather dont want to be a sucker) and cannot spot which ones are overpriced or any other nuances.

All of these are from Chrono24
1)/rolex/day-date18038-factory-diamond-dial-bp-europe-watches--id7935447
2)/rolex/daydate--id7518769
3)/rolex/day-date--id7166012
4)/rolex/rolex-day-date-18238-fullset-1991-top-condition--id7878515
5)/rolex/day-date-ref-18038--id7980232

Thank You so much guys!