Sure. You can try looking on Archive of Our Own (AO3). It has a vast collection of fanfics, and you're likely to find some great Spike x Willow ones there. Just use the search function on the site.
Another option is to ask in relevant fan communities or forums dedicated to the shows or characters that Spike and Willow are from. People there are often very helpful and can recommend their favorite Spike x Willow fanfics. They might even be able to point you to some hidden gems that aren't as well - known on the larger fanfic platforms.
One great willow spike fanfiction is 'Willow and Spike's Adventure'. It delves into their relationship as they embark on a journey to fight a new evil in Sunnydale. The author does a wonderful job of exploring their unique dynamic.
One common theme is the exploration of their unlikely relationship. Given their different personalities and backgrounds in the original source material, fanfics often delve into how they might come together. Another theme is power dynamics, as Spike has his vampire nature and Willow has her growing magical powers.
One popular Spike x Willow fanfiction could be 'The Unlikely Bond'. It explores how their different personalities, Spike's vampiric nature and Willow's witchy powers, bring them together in a world full of supernatural threats. They start off as uneasy allies but gradually develop deeper feelings.
Well, there are several Spike x Ember fanfics out there. 'Spike's Adventure with Ember' is a fanfic that takes them on a journey across different lands. It's full of exciting encounters and moments that bring out their unique bond. 'The Dragon Bond' is another one where their relationship is explored more deeply, looking at how they support each other through various challenges. And don't forget 'Ember's Choice' which shows a side of Ember where she has to make decisions regarding her feelings for Spike.
One popular Spike x Maud fanfic is 'The Quiet Bond'. It beautifully explores their relationship in a very innocent and heart - warming way. The story shows how Spike's adventurous spirit and Maud's calm and collected nature complement each other.
One great Spike x Rarity fanfic is 'A Dragon's Heart'. It beautifully explores their relationship, with Spike's deep admiration for Rarity shown in his every action. Another is 'The Bond Between Them', which delves into how they support each other through various challenges in Ponyville.
I'm not sure how many you've already read, but 'Spike and Limestone's Shared Secrets' is a fanfic that delves into their private conversations and the things they only share with each other. It gives a really in - depth look at their relationship. There's also 'The Growing Bond of Spike and Limestone' which shows their relationship evolving over time in a very natural and engaging way.
Well, there's a 'spike x harem fanfic' where Spike finds himself in a magical world and attracts a diverse group of characters to his side, forming a harem. In this fic, his relationships with each member of the harem are explored in a unique way, like how he has to balance his time and attention among them. It's really engaging as it shows different aspects of his personality through these interactions.
I'm sorry, I'm not aware of specific 'angel x spike yaoi fanfic' to recommend directly. You can try searching on some popular fanfic platforms like Archive of Our Own. They usually have a wide range of fanfics, and you can use the search function to look for ones related to 'angel x spike'.
A really interesting MLP Spike x Gabby fanfic is 'When Dragons and Griffons Meet'. This fanfic delves deep into the cultural differences between Spike, a dragon, and Gabby, a griffon. It shows how they overcome these differences and build a strong friendship, and maybe something more. It's well - written with detailed descriptions of their emotions and the world around them.