Caulerpa alternatives?

[cacas]

I love macroalgae, and have been keeping them for a while now. However I am currently located in California where all species in the genus Caulerpa are banned to own/posess. Many macroalgae tanks use Caulerpa to add shape & form to their aquascape. Since Caulerpa is such a large genus with such a variety of species, it is a bit difficult to find alternative macroalgaes that can fulfill a similar role in the aquascape. Currently I'm searching for macroalgae species legal in California that look similar to caulerpa. The "wide green leaf" look is hard to find outside of that genus.

I want to hear suggestions for alternative macroalgae species that mimic the look of the following Caulerpa species:
Caulerpa lentillifera
Caulerpa paspaloides
Caulerpa prolifera
Caulerpa sertularoides
Caulerpa taxifolia

 

[KrisReef]

I think you are correct that only caulerpa grows like caulerpa.

The only other thing that isn’t hair algae are the

Halimeda?​