I have a small gap to fill in a Shield team, who or whom. would you guys say, is the best shield member(s) for 75 points.

The only requirement is that they to have the keyword, but they don't need to be modern (would make them easier to track down however)

I was Thinking either She-Hulk form IHFF or the Sharpshooting avenger or the covert avenger from AMS

Any ideas?

The Wolverine from the X-men Fast Forces is 75 points and has the Shield Keyword.

Personally I'd break it up though. If you have Hawkeye on the team, adding Mockingbird and a Shield Specialist could help. Or you could use Victoria Hand and let her traitor your opponent when she gets to that click.

Well the team I was thinking about is an incap heavy shield team
CW209 Spider-Woman 55
CW019 Max Fury 69
GSX Aaron Stack 106
CW040 Nick Fury 45
CW201 Iron Man 105
??? ??? 75

Total 500

The Sharpshooting Avenger from the Avengers Movie starter set sounds like what you're looking for. He's exactly 75 points. He has the Shield keyword and TA. Oh and he can triple target incap. Boom.

IH FF She-Hulk is an ol' reliable for my SHIELD teams, GSX FF Wolverine was previously mentioned and he fills a similar role of melee backup to an otherwise primarily ranged team.

A few slightly more left field ideas though are a pair of CA SHIELD Specialists, bringing support and later outwit alongside the SHIELD TA can be some handy times. My last suggestion would be for 65pt AVM Hawkeye, his ability to swap from RCE/ESD to CCE/CR makes him versatile along with his ability to shoot through your own figures with his attack special and enemy figures with sharpshooter means you can get away with some really awkward positioning and his points cost means you can afford to take either the 2pt. Avengers ATA on qualifying members of your team (everyone but max) or a relic.