Interested in any solar advice

It's somewhat of a rabbit hole. As was mentioned earlier, decide what you want it for and buy the pieces that fill that need. I started with 4 6v AGM batteries and 3 panels (inverter and charge controller also). I now have 6 panels with 1530 watts and 8 6v AGM's with almost 900ah. The reason for this is because we are fulltime boondocking while we build a house. Obviously my needs are greater than most, but if you get real honest with your usage, you'll find you need or want more than you initially think. Good luck.