Topic: Halo 5 MP matchmaking

Having had Xbox and Xbox 360, I skipped a generation and went for ps4... Now back to Series X and loving it.

So... I'm trying to get back into Halo (playing halo 5), but matchmaking seems a bit slow... What's the mode that tends to have the biggest player base and quickest matchmaking?

I play team slayer at diamond level, usually takes about a minute to get a match.

I assume ranked team slayer is fastest, the other ranked modes take a bit longer for me.