Vantablack has an exclusivity agreement with artist Anish Kapoor. It also isn't safe to handle, given that the paint is composed of carbon nanotubes.

Another artist thought the exclusivity agreement was shit and created Black 3.0, which is commercially available to everyone but Anish Kapoor. Black 3.0 isn't as black as Vantablack, but the artist claims it appears similarly when viewed by a human eye.

I think Black 3.0 which is around 98-99% and anyone can buy it except for Anish Kapoor

Easiest to use paint is probably black 3.0, just apply coats until desired result. Have black 2.0 and it is quite black, but would like something blacker.