In this talk we introduce various variants of multiple zeta values (MZVs) of level two and four. For example, the alternating multiple mixed values (AMMVs), which forms a subspace of the space of colored MZVs of level four. This variant includes both Hoffman's alternating multiple t-values and Kaneko-Tsumura's alternating multipleT-values as special cases. We will explore their properties similar to ordinary MZVs such as the duality, integral shuffle and series stuffle relations. In the end, we discuss the dimensions of a few interesting subspaces of AMMVs for weight less than 7 and provide some conjectures. This work is joint with L. Yan and J. Zhao.