No bonuses are needed during peak times as there are already plenty of players forming convoy's. If you aren't finding any perhaps you should align yourself more closely with a few factions. For example, you could fly a freelance ID but wear a Samura IFF. You are more likely to get into Samura's convoy's that way.
If anything, and I don't agree with any bonuses, the off times are what should be promoted. We don't need to make the busy times busier, we need to make the inactive times busier.