Back when Star Trek: The Next Generation was airing LEGO wasn’t licensing movies and TV shows so we missed out on some really great toys. Star Trek: TNG has never officially been available in LEGO form, but I suspect they would have looked a lot like these custom Star Trek TNG minifigures if they had been released at the time.
This eight-figure set includes Wesley Crusher, Lt. Commander Data, Dr. Beverly Crusher, Cmdr. William Riker, Capt. Jean-Luc Picard, Counselor Deanna Troi, Lt. Cmdr. Geordi La Forge, and Lieutenant Worf. They are compatible with your existing plastic brick collections, even though they are not official. You can get a version with more natural skin tones for around $100, or the more traditional yellow skin tones, for around $94. You can also just buy them for $15-$16 individually.