Do I need a holding company structure for multiple projects?

I have 3 SaaS products I want to run. Should I create one LLC per product? Or use a holding company with subsidiaries? Trying to figure out optimal structure for liability protection without going crazy on admin costs.

tax consideration: multiple LLCs can mean multiple tax returns if they're not all owned by the same parent. holding company structure with disregarded entity subsidiaries can keep it to one return. talk to a CPA before deciding