Dwarfs out of Venezuela and Trinidad, and the genus that took most of the hobby-relevant species out of Holothele in 2015.
N. incei is the flagship, available in a standard olive form and a gold form, communal-tolerant with space and food, and capable of filling an enclosure with dense webbing in a matter of weeks. Two inches, fast, undemanding.
The gold form carries a durable premium over the olive despite being the same species, which is one of the cleanest examples in this hobby of an aesthetic label doing lasting pricing work. Both breed well, so neither is going anywhere. Also check listings under the old Holothele name, which frequently sit below current market.