When I was a teen devourer of sci-fi, I was obsessed with the spaceship designs on paperback book covers. I would buy any novel or short story collection, however sketchy the contents seemed, if I dug the ship on the cover. Conversely, I would pass over well-regarded books if I thought the spaceship art was crappy. Sometimes, the covers would make a more lasting impression on me than the contents.
I can't imagine how high over the moon teenage me would be for YouTube channels like Spacedock. This excellently-produced channel is a collection of deep-nerdings over the minutia of spaceship designs found in sci-fi media. Episodes look at categories of ships across different sci-fi universes or they are deep dives into a specific class of ship from a world, or a single, iconic ship from a series.
The opinions are definitely those of the creator of the channel, and I don't always agree with them, but current me and teenage me are in love with the nerdiness of it all.