Frankly i can't play them, i mean it's hard for me to get use to buying stuff, especially that i'm a bit short of money.
A few things I have found about Mali:
1) If you have the right start, Reyna's Forest Mgmt promotion can get you massive early gold since it applies to unimproved floodplains, marshes, forests, etc.
2) Unless you get Valetta, faith is not that useful until midgame. Holy sites are there to boost sugubas. The best use of faith is to buy market buildings - don't forget that mali can do this!
3) You can make HS-Suguba formations anywhere, not just the desert, so don't sweat it. Try to do
this (swap hansas for holy sites in that image.) The crescent in particular is especially powerful because often you can align the sugubas to a river.
A crescent pattern from 3 cities in a triangle will net you sugubas worth:
2 for 5 (2xHS + 1 for 2 districts adj)
1 for 8 (3xHS + 2 for 4 districts adj)
Add +2 if you can get a river involved. Guilds is a useful civic to double all this gold.
This combos especially well with Free Inquiry Golden ages. Balance this against Golden Age Monumentality if you have a lot of space and want to develop like an absolute mad lad.
4) Some people like to roll a religion and pick up feed the world for faster grow in the desert; I personally find that Choral Music is better since it means +6 culture in every city with a holy site (all of them) and picking up Wat is also great since you can buy it with faith and its gives science. Then you can focus on HS+Suguba+Campus which gives plenty of Faith/Gold/Science/Culture. Tithe is nice to pick up later for even more gold.
5) GrandMaster's Chapel once you hit tier 2 govt is amazing since now you can get all your military units with faith. Faith is 3:1 for buying while gold is 4:1; with suguba discount you're paying 2.4:1 for faith.
6) You should have reyna and Moksha's district buying promos. Have at least one of them moving around to new cities (always try to settle more spaces) and just plop down the districts instantly.
The important thing is to make sure you're getting the most bang for your buck: if you're buying builders, have the +charges card slotted or liang in the city. Ancestral hall is great value since you will be putting up cities like a locust plague and makes it easier to pump out settlers.