Keep branding consistent with designed social media posts that represent your company in a professional way. Promote services, products or events using your channels and don’t forget to make sure your audience knows it’s coming from you. Keep them consistent with your brand by using the same pallet of colours, fonts etc.
Every company works differently and some may require weekly/monthly designed posts to promote certain things and others who are perhaps more present on their channels might like templates creating using their brand. These can then be used in different ways and can be edited to use as you wish.