Fingers and lube are a great start. However it will not be long before you want more. That is when you have to start thinking about safe materials like silicone, steel and glass - anything you should avoid - or plan to use a condom every time. Silicone lubes are great - but you can't use them on silicone toys - so you have to go water based - or our preference which is oil-based (Yes link
I have also found that tapered toys are great for helping you learn to accept larger toys. A 1" plug is too small - start with about 1.25 - it shouldn't take long to be wanting a 1.5". At that point you can start to experiment with other dildos - realistic or not - your choice.
Go slow - enjoy and good luck!