Josiah/Jasiah

I’m having a boy and desperately searching for the perfect name.

I love the name Josiah. (JO-siah)

But we have a large blended family and everyone’s name starts with a Ja.

It’s like our thing.

Doesn’t changing the O to an A ruin the name? I feel like they’re pronounced similar. (Ja-siah)

need some opinions.