Listen to Saiki K lol. The biggest baddest capitalist merchant in nooks cranny :3 (jk jk)
Realistically tho, selling items (opening up a shop for example) and offering services is the best way if u want a “fast” way to earn tbt! Or just be a frequent poster and active user of tbt to earn bells!
Definitely what Babo said (including me being a capitalist) XD. But if you try to sell first figure out what items are in demand right now. Art is very in demand, but I don’t sell really cause I want to keep all of them as well as craftables like mush lamps and hycanith lamps. It’s hard though as everyone tries to undercut each other and then is the matter of stocking up enough stuff which took me 100s of hours