These are classed as percussion instruments.
it can range from $250 to $1,000, it just depends on the type of drum kit...
The Tama drum kit
A drum kit that is very germy.
I think that's the Mirage Monster by Mike Portnoy. http://www.mikeportnoy.com/drums/mirage/
The advantages of the Tama Imperialstar drum kit would be the 100% Poplar wood shells, the 100% glued finishes, and original small lugs. Overall, the Tama Imperialstar drum kit is one of the top drum kits available.
In a standard drum set or drum kit, common components include the bass drum, snare drum, tom-toms, hi-hat, and cymbals. Instruments like congas, bongos, or tambourines are not typically part of a standard drum kit. Therefore, any of these percussion instruments would not be considered part of a standard drum set.
I suppose minimum would be a bass drum, snare drum and hi-hats
To effectively tune your drum kit using a drum kit tuner, start by placing the tuner on the drum head and striking the drum. Adjust the tension of the drum's lugs until the tuner shows the desired pitch. Repeat this process for each drum in your kit to ensure they are all in tune with each other.
Sunlight Drum Sets are a nice kit, but If you would like a studio quality kit at a low price, The best kits are from DW, PDP, and Pearl.
There is no 'best' drum kit. Each brand and type of kit has its individual advantages.
It all depends on the kit, make, how many drums, what accessories you want.
Usually, a fourth tom is not included in the standard kit.