Mix and match is better. Horror-horror (rather than horror-funny) is just too common these days. No fun there, really.

Mel Brooks, yeah! But I'd do:

High Anxiety.
Silent Movie.
The Producers (1968).

Or, I do something completely different.

Young Frankenstein.
Arsenic and Old Lace.
Murder by Death.

If you really want to go different... go TV series and grab "Father Ted". Only three seasons before the star died suddenly but FUUUNNNNNYYY black comedy. Pure enjoyment.