Answer:
Small online businesses had a big boom over quarantine. Because people couldn't go outside to shop, they had to find a different way. So they resorted to online shopping. This way they not only did they not have to go outside to shop, it was much easier.
Well, that's half your essay, I'm not going to do all the work for you! Hope that's a nice little booster.
(Hint: try putting some examples of small businesses and how they got popular.)