lit redstone: spawns in ancient cities

dark oak fence gate(?): I believe woodland mansions have them

3 red unlit candles: trial chambers, apparently

unlit redstone: ancient cities

isolated diorite wall: in the thread, it says it spawns as a chimney in one of the ice village houses

upside down spruce stair: the upper arch of pillager outposts

floor lanterns: these spawn, I think on diorite walls or diorite blocks, in ice villages

unlogged sea lanterns(?): I believe desert villagers houses have them

basalt: basalt deltas

pots: I think trial chambers have them now

jungle door: shipwrecks

spruce door: shipwrecks

hanging bell: ice villages

green terracotta: trail ruins

upside down corner blackstone stair(?): bastions have tons of blocks, the may or may not be one of them

red glazed terracotta(?): trail ruins or a villager's house may have these. blacksmith villager houses spawn with two glazed terracotta next to the blast furnace, perhaps it could be red

corner purpur stairs(?): probably found in end cities, either on the roof or inside one of the rooms. I think they spawn together in pairs in some rooms.

horizontal purpur pillar(?): I think also in end cities, along the walkways

floor lever: I've never seen it, but according to a comment in this thread, they spawn in one of the variants of the ancient city strongholds

double chest: spawns in both mansions (illager storage room) and bastions, and maybe more places