BeeCut is a great video editor which allows you to crop, cut, merge, make PIP, zoom and freeze frame, etc. It offers you hundreds of crafted transitions, overlays, elements, texts and filters. You can use it to make a quality video with 16:9 (widescreen), 9:16 (portrait), 3:4 (Taobao), 4:3 (traditional) and 1:1 (Instagram) aspect ratios.
Tried many kinds of video editors and found this one satisfy me. No complicated settings, just drag and drop controls! It has all the functions that I need.