After much searching, I've created a collection of especially fun maps. Bomba maps, Honk maps, 1 FabLabs map, bob junkyard map, bando maps, building complex maps, malls, downtown maps, a very nice gate track for Pine Valley map, and a Bando constructed in The Pit map. Subscribe to these maps and then go to Liftoff Multiplayer and "Create Room". Under Select Environment, select "The Drawing Board", then select the track(s) you subscribed to under "Selected Track".
*** If the below map title includes the words "The Pit" or "Pine Valley, then under "Select Environment", you must select "the Pit" or "Pine Valley" instead of "The Drawing Board".

Included: (more may be added any time)
Bando Fun!!!
Bando Pro Tournament
Bob (a really fun junkyard map)
Bomba Bando
Bomba BandoMatic:"Select Environment" > "the Pit" (this map has a bando erected in the Pit)***
Bomba Beer Factor aka Bomba Abandonado
Bomba LandSpeeder aka Bomba Pinard: "Select Environment" > "Pine Valley" (visually fun gates in the Pine Valley)***
Bomba The Philly Corkscrew: a bando map
Dust II: a Building complex map
FabLabs DroneZone aka FabLab Citadel: building complex
Fort de la Chartreuse aka Abandoned Fort
Freestyle Bando Shopping Mall
Honk Bando Office
Honk Castle Crasher II
Honk Downtown Free
Honk Lava Cave
Honk Temple Run II
Intersection: a downtown map
office park
Quadthedral Freestyle Paradise
Roots Freestyle Paradise Bando aka tribute
Strip Mall
ThePalace
It's a Dive: :"Select Environment" > "Autumn Fields"
We the Humans Tesla V1.8
Race the Ruins V2.1 by DerHonk83
and many more.