There are few pagan Goddesses in Slavic mythology such as Mokosh/Makosh from Kiev’s pantheon , also mentioned in earliest chronicles. Morana/Mara goddess that is burned at the end of winter. On Maslenitsa, for example. Possibly Mat’-Syra-Zemlya in Russian mythology. Zhiva in mythology of Polabian Slavs. Even the authenticity of Lada is questioned with some suggesting she was created by historians in offices. The rest such as Poludnitsy , Rusalki, Baba-Yaga are deities. They are not Goddesses.