What types of planes do you have experience flying, and what type are you looking for? Do you want a slow flyer, a trainer, an FPV platform, aerobatic, flying wing, delta...? I don't have much experience with FT kits, as I rushed ahead into trying to scratch build, but I'll be getting one or two soon here myself. I'll personally be getting the mighty mini DR1 Tri plane. I really can't help too much until I know what your flying experience is and what type of plane you are looking for, but I can suggest a couple kits that might be good. The tiny trainer is very popular as a great basic trainer and very modular if you want to experiment at all with your build. The explorer is another basic type that's very reliable and sturdy, and beginner friendly, as well as a good FPV platform.
If you can find the three pack with the FT Flyer, Delta, and Nutball swappables, this is a very economic way to start, and these planes are extra simple to build, and you can swap a single power pack between all three, but the drawback is that they are not trainer or beginner planes, I would say more close to intermediate skill level as far as flying. One kit I have been considering heavily is the sparrow, as this is supposedly a great plane to learn both building and flying, very modular, and a great FPV platform. The only down side as far as the speed build kit is concerned is that it uses a power pack H, which comes unsoldered. If you can solder proficiently, this will only be a minor inconvenience.