Best Way To Test META Ad Content ?

Anyone recommend a specific way to test content for META Ads?

We launched our clothing brand and are trying different ways to test ad content before moving it to our primary ad campaign which is CBO. Before we set a campaign budget but noticed that META was allocating majority of spending into 1 ad that was converting even though others had way stronger numbers like CTR, CAC, etc. So right now were force spending a certain amount per day (10 days total) for all new test creatives to see which ones have stronger numbers comparatively before moving them to the primary ad campaign or replacing them with new creatives.

Anyone have a different/better way of testing?