Joined: Apr 2019
Joined: Mar 2013
From your PTW list :
Shakugan no Shana - this one is my top rec from your ptw, since it is exactly what you are looking for. Lots of action and romance, a clear ending and overall a decent story.
Kaze no Stigma - this is what you are looking for as well - action + romance, but beware that it does not have a clean ending
Soredemo Sekai wa Utsukushii - i loved this one, has some action and a really good romance
Servant x Service - has action, romance is faint, but is there all the way, not a clean ending
Other great romance stories without action:
Arakawa Under the Bridge - not action, not much romance but it's an amazing story, lots of unique comedy and romance moments
Bakuman. - all seasons, must watch for all anime lovers. You get to know how manga are made and how it comes to anime adaptations, a great story. There is romance but not much, so you know. Still I would rec this any day.
Itazura na Kiss - not an action, but a slice of life story. Heavily on the romance side, pretty fun to watch.
Lovely★Complex - this is a great romance story, still not action but slice of life, but full of comedy and overall it's a good watch
Sakamichi no Apollon - mostly slice of life, there is romance present, a great story overall
Sankarea - horror-ish? I dislike horror myself, but I was not scared at all by this one. Has romance but it is kinda not the main focus... Still a good story.
Special A - comedy romance. A fun watch, I recommend it.
+100000 on akatsuki no yona if you didn't see it
Joined: Oct 2019
Didn't check your list just yet, but here are mine:
sora no otoshimono
kyoukai no kanata
shingeki no bahamut: genesis (s2 is kinda ok)
high score girl
prison school (with lots of ecchi if u dont mind)
boku dake ga inai machi
hai to gensou no grimgar
grisaia no rakuen (all of em seasons)
ushio to tora
akame ga kill
Most of em are known, but if you didn't watch any of these, you should!