you can try checking Games and rounds, the majority that posts there are gambling casinos, sometimes there are giveaways there where you can get the BTC from the giveaway without any conditions or at least can get the btc easily.

you can also try Freebitco.in. you can register on their website to use their hourly faucet which gives you a chance to win up to 6.9mbtc(this currently is the maximum BTC from the faucet that you can win).