Hm, if you're looking for early game, are you talking about trying to survive early game, or trying to get an early lead?
If you're trying to survive early game, then dedicated peelers like Raka, Janna, or even Lulu would do.
Raka, we all know, just as long you spam W, stay behind and/or don't get hit, and land your Q's, Jinx might as well become immortal in lane, no matter how aggressive she may be. After lane is still more "better not die" kind of playstyle, but is extremely stupid against the enemy team just as long you are alive and is mashing W on someone.
The ultimate tool of disengage. Tank supports? Fuck that shit, mash a button, cya. Really good against Thresh and Leona. Junglers can never gank you assuming you know how to land tornadoes, or ult if it's up. After lane... well you are still there to disengage.
Even though outclassed, I always loved Lulu/Jinx lanes personally for the sake of lack of actual planning especially when they outplayed the enemy botlane and also because I also have a friend who mains Jinx, just look up Cancerous Jinx :P. Her peels are rather subpar unless you know how to ward deep and anticipate enemies coming to gank, but with the combination of Jinx's chompers, you can still get out alive. You love aggressive laning and grabbing instant jungler attention? Grab Lulu and poke all day. You see those boring tank supports pulling fancy combos, mash w on either of them and continue to annoy the fuck out of them. Her teamfights are so much more powerful after lane, and like Janna and Raka, you are STILL a backline support but with awesome peeling abilities. NOT RECOMMENDED FOR BEGINNERS.
Otherwise if you're trying to spoonfeed your friend and snowball later on, then grab tanks like Leona, Thresh, or Alistar.
Leona in general has stronger setups. You can literally mash 3 buttons in a row and give your friend free kills. Since her lockdowns are fairly strong, she's actually not THAT prone to ganks, unlike me. After lane you're just a typical tank.
Thresh does so much more than just engage, and is less binary so if you are smart enough, a single silence or two will not screw you up if you're trying to pull off a fancy engage. Disengage is just as strong, and you're actually there to punish people for mistakes. And that fucking "out-of-jail-free" card lantern, use that shit. It will make any of your teammates as flashy as an LeBlanc. This is a little more advanced than Leona in general, but at least... know how to land your hooks.
Alistar has a fairly strong engage (the famous WQ combo), but a much stronger disengage in general. You seriously can't kill this guy, just mash R and never die again as you watch your team miserably die. His kit is a lot more simpler, but because of that, you can do so much more. In lane, since you WILL get poked, that's what your heal is for. You can either play the engage way (as in jumping in with that combo), or the disengage way, both works. Laning phase isn't everything, either.
Just dropping in a few ideas. Man, I'm so tired, but hope this helps.