I’d say, if you pick the Tengu that mean you’ll have a shield fleet. You can either take a tackling frigate like an Interceptor, a Keres or a Dramiel (which can give damage and be a good tackling frigate, albeit a bit expensive).
Another thing you can do, if you want to make your fleet more durable, is to invest one of your friend into a Scimitar. Not only will it be able to provide remote shield boosters support, the Scimitar is also bonuses for remote tracking computer, an extremely nice bonus when coupled to the Naga’s large guns which can have some troubles tracking smaller targets. That way, your friend in the Naga can fit less application module and try to help out the flimsy tank of Attack Battlecruisers.