Welcome to the hobby. There is a learning curve and lessons definitely help. There will be lots of opinions because there are a number of variables to consider. Building it yourself, assembling an ARF, buying a almost completely ready to fly trainer, buyinf a used set up, etc.
A combo I like is in the .46 range and a Sig LT 40. Good size, good flyer. Size is a relative matter, depending on $'s and what size transport and storage facilities you have. A larger kit that is top notch is a Bruce Trarpe Flying King. A very versitile trainer fairly tough and as ugly as you could possibly ask for is Stick Plus 40 from Balsa USA. Good luck, let us all know what you get and how it goes for you. Andy
We can make a box of wood.....FLY!!