There are many ways to connect, but here are the most common.
Single Satellite:
Dual Output standard type LNBF and an appropriate Multi-Switch if more than two receivers. 4 receivers = 2x4 switch, 6 receivers = 2x6 switch, 8 receivers = 2x8 switch, etc.
Bandstacked LNBF with 2 or 3 GHz rated splitter. 2 receivers = 1x2 splitter, 3 receivers = 1x3 splitter, 4 receivers = 1x4 splitter, etc.
Multiple Satellites:
Dual Output standard type LNBF for each satellite position and an appropriate Multi-Switch. First determine how many satellites will be available. This will determine the number of inputs on the multi-switch. Each satellite will require 2 inputs to the switch, one for vertical (right) polarity and one for horizontal (left) polarity. Second determine how many receivers will be connected. This will determine the number of outputs on the multi-switch. I.E. two satellites to two receivers = 4x2 multi-switch, four satellites connected to four receivers = 8x4 multi-switch. Note: Multi-switches often have a terrestrial input for incorporating an off-air antenna. Example: 4x2 multi-switch is identified as a 5x2 multi-switch.
Bandstacked LNBF with 2 or 3 GHz splitters and DiSEqc switches. Each LNBF would connect to a splitter that provides the appropriate number of outputs for the number of receivers. One output from each splitter connects to an input of the DiSEqC switch. A coax is then connected from each receiver to the output of the DiSEqC switch.