Livewire v4 brings Blade-style slot support to components.
Default Slots
<wire:modal>Create Post</wire:modal>Named Slots
<wire:modal>
<wire:slot name="header">
<h1>Create Post</h1>
</wire:slot>
<form>...</form>
</wire:modal>In Component
@if ($header = $slot('header'))
{{ $header }}
@endif
{{ $slot }}