There is actually a nice Mathematica Package from H. Patel, that came out recently
and contains a lot of explicit analytic results for A0, B0 and C0 depending on the kinematic configuration. While A0 and B0 are indeed easy and can be done by hand, in case of C0 it is very nice to have some sort of a library for cases with nice kinematics (i.e. all masses are the same or most of the external momenta vanish). The D0 results are unfortunately not included but as far as I understand the author might add it in future.
> A0 and B0 are easy. I believe C0 and D0 are only expressible in
> terms of logs and dilogs in certain limits.
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