Adventure time, futurama, red dwarf, hyperdrive, over the garden wall, wolfboy and the everything factory (despite being fairly new, it’s absolutely amazing and I’ve watched it a lot), owl house, centaurworld, Steven universe, infinity train, Hilda, final space, bravest warriors, gravity falls, and lower decks.
Yes that’s a lot, yes there are more (I have a playlist that shuffles them all like a tv station made just for my comfort), and yes I do watch them when I can’t sleep. Which is frequent. Most of them I’ve seen so many times I don’t even need to watch, even though I’m aphantasic (no internal imagery). Hearing them is soothing, and plenty to know exactly what’s happening. They are safe, enjoyable, and mostly have enough episodes to cycle through that it doesn’t ever feel stale or like “the hell? I just watched this one…”
All of them except red dwarf and hyperdrive are animated because I have prosppagnosia (face blindness) and animation is typically a lot easier for me to get into in the first place, but importantly the two live shows have somewhat limited characters, fairly consistent wardrobes, and the characters don’t tend to resemble one another (a huge problem with most tv and movies these days; everyone looks so samey..) Star Trek would probably be on this list but there are so many of them that I’ve only seen each series a few times.