I will start off not buying any bells on tbt, just rare furniture and things like that. so i will be earning bells the good old way, intensive bug and fish catching! hopefully the islands we will get to visit through the airport will have rare bugs and fish all year round like the island in new leaf does. but because of daisy mae i will absolutely have to get into turnip selling and buying! Might become active on tbt for those sweet sweet high selling prices, if that's a thing in new horizons.
In the beginning, I always relied on fishing and bug catching and I have always used that, so mostly that. I never really tried doing turnips, but I might give them a try, since now I have TBT to go to and find people to help me with turnip prices. I plan on doing lots of trading on here too, so that will be another way for me.