Suggested References  From MathSciNet (=Mathematical Reviews)  

Conjugacy and Other Results in Leibniz Algebras.
White, Ashley Walls; Thesis (Ph.D.)-North Carolina State University. 2017. 42 pp. (here)

On some "minimal'' Leibniz algebras.
Chupordia, V. A.; Kurdachenko, L. A.; Subbotin, I. Ya.; J. Algebra Appl. 16 (2017), no. 5, 1750082, 16 pp. (here)

Split 3-Leibniz algebras.
Calderon Martin, Antonio J.; Sanchez-Ortega, Juana; J. Geom. Phys. 116 (2017), 204-215. (here)

Leibniz algebras whose semisimple part is related to sl2.
Camacho, L. M.; Gomez-Vidal, S.; Omirov, B. A.; Karimjanov, I. A.; Bull. Malays. Math. Sci. Soc. 40 (2017), no. 2, 599-615. (here)

On derivations of semisimple Leibniz algebras.
Rakhimov, I. S.; Masutova, K. K.; Omirov, B. A.; Bull. Malays. Math. Sci. Soc. 40 (2017), no. 1, 295-306. (here)

From ArXiv.org 

Semisimple Leibniz algebras and their derivations and automorphisms 13pp
Shavkat Ayupov, Karimbergen Kudaybergenov, Bakhrom Omirov, Kaiming Zhao (here)

Local and 2-local derivations and automorphisms on simple Leibniz algebras 28 pp
Shavkat Ayupov, Karimbergen Kudaybergenov, Bakhrom Omirov (here)

Ternary Leibniz color algebras and beyond 18 pp
Ibrahima Bakayoko (here)

On nilpotency in Leibniz algebras 11 pp
C. J. A. Bere, M. F. Ouedraogo, M. Ouattara (here)

Minimal linear representations of filiform Lie algebras and their application for construction of Leibniz algebras 10 pp
I.A.Karimjanov, M.Ladra (here)