Hello.
I will describe my method of easy profit in tibia, since you have asked for some hunting grounds rich with money. It will make you comfortable while playing your main character for sure. My credentials are : at least 100k voodoo masters killed, around 120 voodoo dolls sold.
Firstly, you need to create 4 MS noob chars, equip them with speed items, stealth rings and avalanche runes. On the left pray table you need to draw a Voodoo Master, then you need to get 10/10 loot prey on each char. This is time-consuming but constant, since left praytable is available on facc - it will never go away. Ok, now you need to rotate your noob chars - 1 is logged off on the hunting ground, the rest are getting 3 prey cards each week in the dp (you need 5 prey cards to lock the voodoo master lootprey for another 2h).
Now, depending on your noob char lvl, the method will be quicker, for the case of this post I will refer to 50lvl ms and 200lvl main char ms.
Go to the dworc cave in Port hope and follow pictures below, green dots are voodoo masters to kill, blue dots are rope holes to go down. Stealth rings will make you safe at all times, so you can even go afk.
-1. 31Voodoo Masters to kill
-2. 10 Voodoo Masters to kill
-3. 17 Voodoo Masters to kill
-4. 14 Voodoo Masters to kill
There are other places in the cave but don't bother going there, the way is too long for too few Masters.
My circle has 72 Voodoo Masters in total, for 50lvl it takes 8min, for 200ms it takes 5min with gran hur.
The red lines are the best circle during double resp events, killing 72 voodoo masters during this time takes 3min for 200lvl and 4,5min for 50lvl.
Now - looting.
Mark Voodoo Dolls and Bast Skirts as valuable loot. Enlarge your Loot Chat to around 7-8lines. Once the doll is dropped it will be impossible to miss. Occasionally, tho rarely, a bast skirt will be dropped as well.
On open pvp servers (antica and vunira) the dolls are sold for 400-1200k each. In case of Vunira it's 800-1200k, depending on a day, usually it's 800-900k each, but every month there is a few days window when you can sell your dolls for as much as 1200k, so hold on to them and sell them monthly, if you need cash quickly just sell one thru trading (not thru market to not put the avg. price down).
Statistics.
The doll is dropped every 500-800 Voodoo Masters killed on average. Sometimes you can get 2 in 1min, sometimes you need to kill 1200 to get one. But the average stays the same for years now. During double loot/rapid respawn you can get even 5 dolls in one weekend.
Now the most important thing:
HOW TO STAY SANE
Do not do more than 1-2 circles each time (unless it's the event time). If you go there for longer than 20min you will get frustrated very fast, since you may not get the doll for even 1200 voodoo masters. Just don't do it. I do exactly one circle - 72 masters - and then log off, 0-4 times a day. This way if you won't get the doll it's ok, since you lost only 8min of your time. If you get it - great.
I've been doing it for 7 years now, whenever I am back to playing Tibia. It really works. It's a great method of getting your premium time, or dream items. Tho remember it's all about the average monsters killed. Since Cyclopedia was introduced I killed 55400 Voodoo Masters, before that probably a similar amount. There were times when I had no luck for 2 weeks and times when I looted 2dolls each day for a week.
Hope you will enjoy and stay sane and rich :)