Stoner/doom and fuzz, my favourite! It’s always a difficult topic of which fuzz should to pick. Biggest problem is what works for one person doesn’t for someone else. All basses, amps and people sound different when combined.
id be inclined to find a “strain” of pedal you like and then fall down the rabbit hole of who makes what. Such as if you like a big muff tone, there thousands of muff based pedals with different perks. (Grand tarkin, musket etc)
i am a fan of blending in a bit of clean but it’s not always necessary.
I’m quite fond of the mountainking megalith at the moment with a blend.
I’d also probably be looking at damnation audio MBD-2.
from experience fuzzes and actives sometimes don’t work too well however Zvex mastotron works quite well with rolling off the volume before it get into the fuzz section.
When used to use a stingray I ran a tube screamer into a Russian big muff and found the combo of the two worked very well. IIRC on the first RATM album Tim used a guvnor mk1 to get his tone.