This is quite tricky - there are plenty of songs with boys’ names in them, but it’s harder to find ones that seem both positive and appropriate to sing to your own child :).
Top picks for lullabies:
[name_m]Gabriel[/name_m]: ‘[name_m]Gabriel[/name_m] and Me’, [name_u]Joan[/name_u] [name_u]Baez[/name_u]
[name_u]Bertie[/name_u]: ‘[name_u]Bertie[/name_u]’, [name_f]Kate[/name_f] [name_m]Bush[/name_m]
[name_m]Angus[/name_m]: ‘[name_u]Dream[/name_u] [name_m]Angus[/name_m]’, Traditional lullaby ([name_f]Annie[/name_f] [name_u]Lennox[/name_u] does a version, but there are plenty to choose from)
[name_m]Harry[/name_m]: ‘[name_m]Harry[/name_m]’, [name_f]Catherine[/name_f] [name_m]Howe[/name_m]
[name_m]Sean[/name_m]: ‘Beautiful Boy (Darling Boy)’, [name_m]John[/name_m] [name_u]Lennon[/name_u] (though the name only occurs once, at the end)
[name_m]Ziggy[/name_m]: ‘[name_m]Born[/name_m] to be Lively’, [name_m]Ziggy[/name_m] [name_u]Marley[/name_u]. I saw you’re considering [name_m]Ziggy[/name_m] as a nn. [name_m]David[/name_m] [name_m]Bowie[/name_m]'s ‘[name_m]Ziggy[/name_m] Stardust’ is more obvious (and a great song), but ‘[name_m]Born[/name_m] to Be Lively’ is also quite cool and possibly more suited (lyrically & narrative-wise) to a young child . Lyrics include “So when you see [name_m]Ziggy[/name_m] doing his thing /That’s why he was born”. ‘[name_m]Rocket[/name_m]’ by Def Leppard is another option.
[name_m]Ben[/name_m]: ‘[name_m]Ben[/name_m]’, [name_u]Michael[/name_u] [name_m]Jackson[/name_m]. I know [name_u]Michael[/name_u] [name_m]Jackson[/name_m] is a controversial figure, but this song was released when he was a child (which removes most of the potential creepiness) and the lyrics are really quite sweet. I know you mentioned in another thread that you like the name [name_m]Bennett[/name_m] and your husband likes [name_m]Benjamin[/name_m], which bumped this up into my top picks.
Honourable mentions:
[name_m]John[/name_m]: Lots of songs, but I’m thinking particularly of ‘[name_m]John[/name_m] O’Dreams’ by [name_m]Bill[/name_m] Caddick
[name_m]Tom[/name_m]: ‘The Only Living Boy in [name_m]New[/name_m] [name_m]York[/name_m]’, [name_m]Simon[/name_m] & Garfunkel
[name_u]Bobby[/name_u]: ‘Me and my [name_u]Bobby[/name_u] [name_m]McGee[/name_m]’, [name_f]Janis[/name_f] [name_m]Joplin[/name_m]
[name_u]Sam[/name_u]: ‘Telegram [name_u]Sam[/name_u]’, T-[name_u]Rex[/name_u]
[name_m]Jonathan[/name_m]: ‘[name_m]Jonathan[/name_m]’, [name_m]Barclay[/name_m] [name_u]James[/name_u] Harvest
[name_m]Harvey[/name_m]: ‘Shine on [name_m]Harvey[/name_m] Bloom’, [name_m]Allan[/name_m] [name_f]Sharman[/name_f] - I saw that you’re fond of the name [name_m]Harvey[/name_m]. This song is quite fun, though it’s a comic one and not as sweet/loving as some of the others I’ve mentioned. It might also feel uncomfortable to sing if you’re not Jewish.
[name_m]Silas[/name_m]: There are sooooo many songs for this one - the tricky part is that many of them are religious ([name_m]Christian[/name_m]) songs, which might or might not be a problem for you. If you don’t mind the religious element, there are versions of ‘Children, Go Where I Send Thee’ by some rather cool artists, including [name_m]Johnny[/name_m] [name_m]Cash[/name_m], [name_m]Jefferson[/name_m] Airplane, [name_f]Nina[/name_f] [name_u]Simone[/name_u] and The [name_m]Kingston[/name_m] Trio (a Google search should bring up some more). ‘The World Needs a [name_f]Melody[/name_f]’ is another song in the same vein. Some other options include [name_m]King[/name_m] [name_f]Crimson[/name_f]'s ‘[name_f]Happy[/name_f] Family’ (slightly disturbing, but not really more disturbing than many nursery rhymes/kids songs), or [name_m]Bruce[/name_m] Springsteen’s ‘Eyes on the Prize’. ‘Put on Your Old [name_u]Grey[/name_u] Bonnet’ is another option (sung by [name_m]Jimmy[/name_m] [name_u]Dean[/name_u], among others) -it’s a sweet song, but the [name_m]Silas[/name_m] in the song is quite elderly. For a non-[name_m]Christian[/name_m] song, there’s ‘Island of [name_f]Avalon[/name_f]’ by Renaissance, which references ‘[name_m]Silas[/name_m], god of trees’ (presumably a reference to [name_m]Silas[/name_m]'s derivation from [name_m]Silvanus[/name_m])
All the best of luck, and congratulations on your bub-to-be!