Picking a second middle name

So I am picking out a name for my baby, my son has two middle names so I feel the new baby should also have two middle names we have our girl name picked out but struggling with the boy we think we’ve decided on [name_m]SILAS[/name_m] and my husband likes the middle name [name_u]TYLER[/name_u] after his brother so help me come up with another one.
[name_m]Silas[/name_m] [name_u]Tyler[/name_u] ? [name_u]Gray[/name_u] or [name_m]Silas[/name_m] ? [name_u]Tyler[/name_u] [name_u]Gray[/name_u]

What kinds of names are you most drawn to? Nature? Traditional? Modern? Vintage?