From your list I really like [name]Felix[/name] and [name]Linus[/name] or [name]Felix[/name] and [name]Miles[/name]. I like the pp’s suggestion of [name]Felix[/name] and [name]Jasper[/name] as well.
[name]Felix[/name] was my top choice if baby #3 had been a boy, and we already have a son named [name]Sebastian[/name], so I think [name]Sebastian[/name] and [name]Felix[/name] are a spectacular sibset.
I also like [name]Felix[/name] and [name]August[/name]/[name]Agustin[/name] (and variants).
If we had had twin boys with this last pregnancy we probably would have gone with [name]Felix[/name] and [name]Ignacio[/name] (letting my husband and I both pick our favorite names). So maybe [name]Felix[/name] and [name]Ignatius[/name]? Kind of cool? Maybe? Not sure! 