https://www.thevespiary.org/rhodium/Rhodium/pdf/borohydride.p2.nickel.pdf (https://www.thevespiary.org/rhodium/Rhodium/pdf/borohydride.p2.nickel.pdf)
Nickel(II)Acetate tetrahydrate and sodium borohydride easily reduces a variety of alkenes alkynes and dienes selectively.
Perhaps it can reduce nitroalkenes too?