I definitely think [name]Leilani[/name] could honor [name]Lani[/name]. My favorite combination is [name]Phoebe[/name] [name]Jane[/name] [name]Leilani[/name]. Good luck!
[name]Leilani[/name] could definitely honour [name]Lani[/name]. [name]Susannah[/name] could honour [name]Suzanne[/name], too - I think [name]Phoebe[/name] [name]Susannah[/name] [name]Jane[/name] has good flow, and would be a classic, pretty choice. I personally would avoid [name]Lani[/name] or [name]Leilani[/name] with [name]Phoebe[/name] as the repeated EE ending sounds are quite noticeable, but I’m just being picky! I suppose it wouldn’t really matter if they were separated by a second middle name.