A couple of interesting ones to think of doing. Haven't done any yet:
"Farlands"
"Old/Confined World"
"Beta"
"Pokemon"
"Cringe"
"Memes"
"Chest Cavity Mod"
"Fast progression"
"Infinite end dimension with dragon and portal"
"Undertale"
"Blue screen"
"Solar system"
"Sonic"
"Mario"
"Sex Ed"
"Dog breeds"
"Wasteland"
"Mafia" (like among us but cooler)
"Nostalgia"
"Backrooms"
"Fortnite" (personally my least favorite option on this list)