Is There Like a Skater and/or エモ Anime??

for skateboarding アニメ I couldn't really find much but many people did recommend to others asking your 質問 to watch Air Gear and Eureka Seven link
link as for エモ アニメ I'm not sure about there being anything エモ specifically but there are many Gothic/horror themed animes. so あなた might want to try the ゴシック theme.

Try [K] Project, there is a スケート boarder called Yata and he is awesome! =]