I cant tell specifically brands or may maganda kang mabibili na bnew within that price range particularly sa video editing. Might be 2nd hand, pero you need to consider the specs at ilang taon na yang laptop.
Always remember any multimedia works requires high GPU, CPU and RAM which alam naman natin na an taas pa ng presyo ngaun. Medium-gaming laptop alam ko nasa 50k+ yan sa pinas at sale pa yan.
Anyways if you are aiming for really good laptop, ipon ka pa. Wag ka magmadali.