Use UltimateWB – it has a built-in videos app. You can just post the videos yourself, or allow users to upload videos too.
Got a techy/website question? Whether it’s about UltimateWB or another website builder, web hosting, or other aspects of websites, just send in your question in the “Ask David!” form. We will email you when the answer is posted on the UltimateWB “Ask David!” section.