4.) Stephen Vogt
You will struggle to find more than a handful of people across baseball that is as beloved as Stephen Vogt, Vogt put together a stronger playing career than he is given credit for and the vast majority of the people that have interacted with him have been certain that he remain an important part of the game either as a coach or a TV analyst.
As a coach for the Mariners, it appears as though Vogt has chosen the coaching path and it is likely that he will get a shot as a manager someday. Vogt does have some connections to both the front office and the Giants (he did play in San Francisco in 2019 after all) which certainly helps. Lacking managing experience is again a knock against him, though, and it may be best to let him develop more as a coach before giving him the reins of a team that is looking to compete in the short-term.
3.) Kai Correa
One of the Giants' top internal candidates has to be bench coach and interim manager Kai Correa. Correa has already been considered a future manager for a while now and his name was being batted around as Kapler's replacement as soon as he was named interim manager for the final handful games of the 2023 season.
Correa is a really good defensive coach and know that analytics side of the game as well as anybody which seems like a fit with what the Giants' front office is going to want. However, Correa doesn't seem like enough of a departure from Kapler's regime and may need some more seasoning before being ready to take a skipper job.