Nothing really special to look for in toonies.
The George quarter is silver. that's a couple bucks but no further premium unless it's UNC or a 48.
The
V nickel you mentioned could be a wartime nickel or a commemorative nickel.
The 05 comm nickel has no premium, the wartime nickel is worth 10c in circulated condition.
Please be more specific with years and include pictures where ever possible.
Use coinsandcanada website to help you out on your journey.