Otto is so cute. I love [name_f]Anais[/name_f] from your girl list!
Here are my thoughts on the ‘names you don’t mind list’-
Louis-This is nice. It’s handsome & simple & classic. It fits fine w/Otto. It’s not quite as spunky, but it works.
Ziggy-I think that this is just a little bit too goofy. Maybe it’d be okay for a nn, but I’m not sure what for. Something like [name_m]Zachary[/name_m] or [name_m]Zacceus[/name_m] perhaps? [name_m]Ezekiel[/name_m]?
Johan-That’s cool. It’s not my personal favorite, but it’s unique & a good solid name. Sounds a little bit serious next to [name_m]Otto[/name_m], but that’s not a deal breaker.
Remy-I like this a lot. I seem to be hearing it on girls a lot more, sadly. It’s all boy to me. Very dapper & nice w/Otto.
Basil-Ooh, I love this one. It’s so smart & cozy & nature-y & interesting. And the nn Bash is cute. Are you in the UK or US (or other?) If you’re in the UK, you should get Bazz-uhl no problem, I’d think. If you’re in the US, you might get a lot of [name_u]Bay[/name_u]-zuhl. [name_f]Do[/name_f] you prefer Bazz-uhl? I do. I’m in the US though, so I’d never use it here.
Rudy-I think that this goes well w/Otto, but I don’t personally love it. [name_m]Just[/name_m] the ‘rude’ part kind of turns me off. But I do like how its a less common version of [name_u]Remy[/name_u].
Reuben-Nothing wrong w/this one, it just doesn’t sparkle for me. Perfectly nice though.
Mali-This has a cute sound, but seems a bit feminine. Maybe [name_m]Malcolm[/name_m] or [name_m]Malachy[/name_m] or [name_m]Malachi[/name_m] nn [name_f]Mali[/name_f]?
Lumi-This seems feminine too. Not my cup of tea.
Jens-I like it in theory, but just not big on the sound. Maybe I’m just desensitized to ‘[name_f]Jen[/name_f]’ names growing up w/so many.
Lucien-Not a huge fan of this one. It reminds me of [name_m]Lucifer[/name_m].
Enzo-That’s adorable & great w/Otto.
Nico-Ooh, I love this one even more than [name_m]Enzo[/name_m]. [name_m]Enzo[/name_m] is possibly more unique though.
Magnus-This is my husband’s favorite name. I told him maybe we could use it for a big dog some day, but it’s just too macho for a child in my opinion.
Matteo-Very dashing. [name_m]Way[/name_m] more popular than you’d think, surprisingly.
Calvin-This is fun. Handsome & a little quirky. I love the nn [name_u]Cal[/name_u]. This almost seems a little bit bland next to [name_m]Otto[/name_m].
Orlando-This one is just a little too much for me. I picture some dude working out at the gym. Not sure why!
Sorry for any repeats, but here are a few more suggestions-
Hope this helps.