Widescreen Conversion for 13 Videos

I have 13 short promotional clips that currently sit in mixed, unknown aspect ratios. I need each one reframed or padded so they play in a true 16:9 widescreen aspect ratio. Paying $40 AUD On top of... (Budget: $30 - $250 AUD, Jobs: Adobe Premiere Pro, After Effects, Animation, DaVinci Resolve, Final Cut Pro, Video Editing, Video Post-editing, Video Processing, Video Production, Video Services)