Is there a classification of subgroups $G$ of $\operatorname{GL}(n,q)$ which act transitively on $\mathbb{F}_q^n \setminus \{0\}$, the set of non-zero vectors?
Any $G$ with $\operatorname{GL}(n/m,q^m) \leq G \leq \Gamma \operatorname{L}(n/m,q^m)$ for some $m \mid n$ is an example, since then $G$ contains a Singer cycle. Another example is $\operatorname{Sp}(2d,q)$ in $\operatorname{GL}(2d,q)$.