I feel like I dream up/fall in love with a new sibset everyday!
But let’s just go with the tried and true…
If I have a little boy first, especially if it is with my current boyfriend he will probably be called [name_u]Oliver[/name_u] (middles are all over the place, but we’ve always loved Oliver!)
Family names will most likely be used for all of their middles (so I’ll have to say goodbye to [name_f]Darling[/name_f], [name_f]Petal[/name_f], [name_u]Wilde[/name_u], etc.
)
If he’s [name_u]Oliver[/name_u] [name_m]Thomas[/name_m] [name_u]Jay[/name_u], his little brother would most likely be something along the lines of [name_m]Leo[/name_m], [name_m]Hugo[/name_m], [name_u]Freddie[/name_u], [name_u]Finn[/name_u], or [name_u]Milo[/name_u] (if he doesn’t have an older brother named one of these)
Oliver’s little sister would definitely be [name_f]Eleanor[/name_f], that is my favorite girls’ name! But I don’t like the common sounds in the endings, so she might be [name_f]Ivy[/name_f], [name_f]Willa[/name_f], [name_f]Lucy[/name_f], [name_f]Ida[/name_f], [name_f]Flora[/name_f], [name_f]Penelope[/name_f], or [name_f]Harriet[/name_f]!
If we have a little girl first, she’ll be either [name_f]Willa[/name_f] or [name_f]Eleanor[/name_f] most likely! And her little brother/sister would be [name_u]Amos[/name_u], [name_u]Milo[/name_u], [name_u]Finn[/name_u], [name_f]Thea[/name_f], [name_u]Jude[/name_u], [name_f]Lucy[/name_f], [name_f]Ivy[/name_f], or [name_u]Oliver[/name_u]!
So to actually answer your question now 
Here are some combinations I have for my second baby, if not used on the first!
[name_u]Jude[/name_u] [name_u]Elliot[/name_u]
[name_m]Leo[/name_m] [name_m]Christopher[/name_m]
[name_u]Amos[/name_u] [name_m]Henry[/name_m]
[name_m]Hugo[/name_m] [name_u]August[/name_u]
[name_u]Freddie[/name_u] [name_m]Leo[/name_m]
[name_u]Finn[/name_u] [name_m]Christopher[/name_m]
[name_u]Milo[/name_u] [name_u]James[/name_u]
[name_f]Ivy[/name_f] [name_f]Pearl[/name_f]
[name_f]Willa[/name_f] [name_f]Dorothy[/name_f]
[name_f]Lucy[/name_f] [name_f]Eleanor[/name_f]
[name_f]Ida[/name_f] [name_f]Mabel[/name_f]
[name_f]Flora[/name_f] [name_f]Celeste[/name_f]
[name_f]Penelope[/name_f] [name_f]Opal[/name_f]
[name_f]Thea[/name_f] [name_f]Helen[/name_f]
[name_f]Harriet[/name_f] [name_f]Primrose[/name_f]