I adore [name_f]Liv[/name_f] & [name_u]Max[/name_u] together!! Are you planning on having more than 2 kids, though? If so, the “three letter” theme might box you into a bit of a corner. Same with if you chose [name_f]Margot[/name_f], and then you’d have an “M” theme. Themes can certainly be broken, but it might feel awkward to break the pattern for a third.
I love the name [name_f]Stella[/name_f], but one minor thing that came to mind is that both [name_f]Stella[/name_f] and [name_u]Max[/name_u] are often used as dog names, including in pop culture ([name_u]Max[/name_u] from [name_m]How[/name_m] The Grinch Stole [name_u]Christmas[/name_u], [name_f]Stella[/name_f] from Modern Family). That may be a non-issue for you because obviously they aren’t dog names! But if it might bother you to have that thought occasionally passing through people’s minds, I would maybe pick another option. The only reason I think this occurred to me though is that my husband definitely has a name that is commonly used on pets, especially dogs, and it is something I consider when making my own lists for our future kids!