I do not know which Flashforge 3D printer to buy. Can you offer some suggestions?

First and foremost, you should know what you want to do with a Flashforge 3D printer and purchase a 3D printer according to your practical needs.

Two features worth your careful consideration: build volume and compatible filaments. Larger build volume of the 3D printer allows you to print models of bigger size; To make functional models or some objects with high strength/high toughness, you need print with advanced filaments and advanced filaments are only supported by advanced 3D printers, so please have a clear learning of the filament types supported by the 3D printer.

Here is an article for your reference: Help in deciding which Flashforge 3D printer is right for you.