No way. The manga portrays their connection through mutual respect and competition in their journey to become great heroes. A kiss is not part of that narrative at all.
There's also 'Unexpected Affection'. In this fanfiction, the kiss between Deku and Todoroki occurs in a very tense and emotional situation, like after a big battle where they realize their true feelings for each other. The author does a great job of building up the anticipation before the kiss.
Another way is to join fan communities dedicated to the series they are from, like My Hero Academia forums. There, fans often share and recommend their favorite fanfictions, including those with Deku and Todoroki kisses. You can also ask for specific recommendations in these communities.
One common theme is rivalry. Bakugo's aggressive and competitive nature against Todoroki's more reserved yet powerful self makes for an interesting dynamic. Another theme is friendship development, as they often start off at odds but then find common ground.
In some fanfictions, Bakugo can become more empathetic. For example, if he experiences a situation where he realizes the pain he's caused Deku over the years. His aggressive nature might soften as he starts to understand Deku better. Deku, on the other hand, could become more assertive. Instead of always being the timid one, he might stand up to Bakugo more firmly in fanfiction scenarios.