Are there any reducing agents for reduction of nitrobenzene to aniline other than Sn/HCl?
Hydrogenation of aromatic nitro groups (over, for example, $\ce{Pd/C}$) usually results in reduction to the corresponding aniline and is probably easier to carry out and work up as compared to $\ce{Sn/HCl}$.

Wikipedia has a list of several conditions for reduction of $\ce{ArNO2}$ to $\ce{ArNH2}$.  It also states that $\ce{LiAlH4}$ reduces it to the azo compound $\ce{ArN=NAr}$, which is corroborated by March's Advanced Organic Chemistry (7th ed.).

In any case, from a practical perspective, you would probably want to avoid using $\ce{LiAlH4}$ if there's a simpler alternative. It's dangerous and the workup is not fun.