Looking for Video Asset Manager recommendations.

I run a small YouTube channel aimed at climbing. Having been going just over a year I already have thousands of clips showing climbs. I want a simple way of cataloging them that will allow me to find something if I need it for a new video. tags, or keywords are good enough. So I could for example find all the climbs I have of me doing a particular grade, and failing/falling. 

Initially I tried to use Lightroom as I love what it does for photographs. However it is sooo slow to use for video. I then tried Bridge, but it still does not support HEVC or some of the other formats I use (despite the fact that other Adobe products do - what's up with that?). 

So I'm looking for recommendations. File naming conventions will not be enought.