I’m in love with the name [name]Francesca[/name] but haven’t been suggesting it to DH because I don’t know how it’ll sound with our last name. Our last name starts with CH and sounds like Chulhouse. Is it too cha-cha-y?
Honestly, it does a bit… but not enough that you should stay away from it, in my opinion. You’d just have to be on board with the sound of it. I doubt many, if any, would think of it unless directly asked.
[name]Francesca[/name] is a beautiful name! I love all the nicknames it has, as well. I knew a [name]Francesca[/name] that went by [name]Franny[/name] with her family and Cesca (cheh-sca) with her friends.
[name]Francesca[/name] “Chulhouse.” Hm. Maybe not ideal, but not horrible! At least I don’t think so. [name]Frankie[/name] “Chulhouse” is so cute! Would you use a nickname?
[name]Lemon[/name] 
Agree with pps - maybe not ideal but not so bad that I’d avoid it. Maybe just be sure the middle doesn’t also have ‘ch’!