welcome to this wonderful community!
Do you mean you will use two Trello Accounts (private + business)? There is no integrated way in Trello to switch between two accounts but no need to worry - there are good working workarounds mentioned here
I prefer a Google Chrome solution creating a guest account for my private Trello account.
You may also have a look on Trello help site
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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