One way to find fanfics about Alisa Amiella in love with Naruto is to look at the tags. On fanfic websites, authors usually tag their works with relevant keywords. So, if you search for tags like 'Alisa Amiella', 'Naruto', and 'love', it can narrow down your search. Additionally, reading the reviews of the fanfics can give you an idea of whether it's worth your time or not. Some reviews might mention if the relationship between the two characters is well - developed and interesting.
I'm not sure if there are a large number of fanfics specifically about Alisa Amiella in love with Naruto, but when looking for such a fic, it's important to consider the quality of the writing. Some fanfics might have great character development and engaging storylines, while others might be more about the romantic concept without much depth. You could also join Naruto fanfic communities on social media platforms to ask for recommendations.