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YCor
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Sean Eberhard
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Maximal abelian subgroups of the full collineation group $\mathrm{P\Gamma L}_3(q)$

Is there a convenient list of the maximal abelian subgroups of the projective semilinear group $\mathrm{P\Gamma L}_3(K) \cong \mathrm{PGL}_3(K) \rtimes \mathrm{Gal}(K)$ for $K$ a finite field?

This is related to this previous question about maximal abelian subgroups of $\mathrm{GL}_n$: Maximal abelian subgroup of general linear groups. My question is easier in that $n = 3$, but harder in that I am mod $K^\times$ and $\rtimes \mathrm{Gal}$, which is irritating enough that it would be good to have a reference if there is one.