We often need to schedule meetings, and it can be a lot of work to organize a time that works for multiple people. Here are a few solutions I've found. Note that while these all offer a free option, chances are high they are logging the name of your event and participants and that information could be shared or sold. Also make sure you're using a privacy centric browser, to block any third party privacy trackers.
The first one worth checking out is called x.ai, which uses AI, and multiple platforms, it's called x.ai.
The other notable players:
Old school interfaces: