Hi Noel:) 저는 라뽁이를 먹는 거예요. →저는 라볶이를 먹는 것을 좋아해요(Formal).,저는(=전) 라볶이 먹는 걸 좋아해요(less formal) 난 KPOP과 문구류 사는 것을 좋아해요. it's okay but since KPOP is genre(you can't buy genre), it'd be better specify the thing you buy. And ususally 난(=나는. the subject '나') comes with 반말. I suggest 저는 KPOP앨범과 문구류 사는 것을 좋아해요(formal)., 전 KPOP 앨범과 문구류 사는 걸 좋아해요(less formal) 앨범 can be replaced anything you like.

I'm trying to say that "I enjoy the act of eat 라볶이." And "I like the act of buying Kpop and Stationery." It was supposed to be sentences I created for the -는 것 grammar point.

Noel, can you first tell us what you're trying to say in English? So, from what I could understand, you like eating 라뽂이 (watch out for the spelling, it's ㄲ under 뽀) and you also like K-pop and office supplies??