Title speaks for itself. For me, though...
Fire Emblem:
M!Robin x Tiki: This might be obvious for those who know me. I like like Tiki, but I do like the support between these two and the romance from it.
F!Robin x Stahl: If I had to pick a dude, it would be Stahl. Guy is just a nice guy.
M!Morgan x Lucina (Non-sibling, of course)/Nah : Both of these are just so good. The Lucina one was one I discovered more recently.
Camilla x Benny/Kaze: Two practically interchangeable guys that are just nice. Special thanks to @ghast and his Support Science for inspiring me to follow these.
Laslow x Azura: These two have much in common, and I like how they bond over them.
Erk x Priscilla: AKA the better Erk x Serra. And Priscilla can be happy.
Touhou:
Mokou x Keine
Remilia x Patchouli
I saw the descriptions for both ships and liked what I read. Helps I read some good fanworks for the former.
That’s all for now, will come with more. No wars, please.