what is the best software to create and burn dvd

Cisdem DVD Burner is definitely the best alternative to iDVD. Since iDVD was removed by Apple, it has completely restored the interface and functionality of iDVD, becoming a lifesaver for many users who need to create a DVD.

In 2021, it got a big upgrade, releasing a brand new interface - more modern and easy to use, with more menu templates. You can take a look at this program.

As a replacement for iDVD

https://www.roxio.com/en/products/toast/

Or for a barebones version - but the price is right:

https://burn-osx.sourceforge.io/Pages/English/home.html