NFL teams meet with prospects in a variety of ways, whether it be at All Star games, the Combine, Pro Days, private workouts, or hosted visits. NFL rules allow teams to bring in up to 30 draft prospects for visits, and the 49ers are taking full advantage of the opportunity. Trent Baalke told Matt Maiocco the team has 27 players lined up for visits, and we are starting to learn some of the names.
Matt Barrows is reporting the team will bring in cornerbacks Mackensie Alexander and Eli Apple, and defensive tackle Robert Nkemdiche for visits. Pass rusher Shaq Lawson said he will be visiting the team on April 10, and wide receiver Laquon Treadwell said he will meet with the team. Barrows reported the 49ers might instead travel to visit with Treadwell, as opposed to a Santa Clara visit, but that is still being worked out.
Barrows article referenced a pertinent fact. Dating back to the 2010 NFL Draft, Eric Reid is the only first round pick who did not visit the 49ers ahead of the draft. It is likely we will not know all the pre-draft visits the 49ers host, but we can at least speculate a little based on the names we see. And given that Reid did not visit, it is entirely possible the team will not officially host the player they end up drafting.