There are several tropical and subtropical trees that you can grow indoor. The most common, and the easiest to care for, is the Ficus Bonsai. The Ficus is tolerant of low humidity and is very resilient, making it an excellent choice for beginners.
Other popular indoor Bonsai include the Dwarf jade, the Fukien tea (Carmona), the Hawaiian umbrella (Schefflera), and the Sweet plum (Sageretia). If you select one of these trees and care for it properly, your Bonsai will thrive indoor.