right now I'm watching "sketchbook full colors", it's your typical slow paced SoL anime.
Otherwise there is also "Key the Metal Idol" and although much more popular than the other too I mentioned, I also watched "Haibane Renmei" recently.
Then another typical romance SoL is "Ai Yori Aoshi".
Just some random anime I happened to remember, there are many more of course.
Just look up shows in specific years on myanimelist - 2003 for example if you want the early y2k aesthetic - just look for things that seem interesting to you. They can be sorted by genre.
There is just some special atmosphere about those forgotten things that is strangely appealing to me.