Hentai recommendations (only posting first episodes)
http://hentaihaven.org/lovely-x-cation-the-animation-episode-1/
http://hentaihaven.org/shin-hitou-meguri-episode-1/
http://hentaihaven.org/kimi-no-mana-wa-rina-witch-episode-1/
http://hentaihaven.org/pretty-x-cation-the-animation-episode-1/
http://hentaihaven.org/pretty-x-cation-2-episode-1/
http://hentaihaven.org/mankitsu-happening-episode-1/
http://hentaihaven.org/kanojo-x-kanojo-x-kanojo-episodes-1-3-uncensored-marathon/
http://hentaihaven.org/oni-chichi-refresh-episode-1/
http://hentaihaven.org/koakuma-kanojo-the-animation-episode-1/
http://hentaihaven.org/rance-01-the-quest-for-hikari-episode-1/
http://hentaihaven.org/maki-chan-to-nau-episode-1/
http://hentaihaven.org/baka-na-imouto-o-rikou-ni-suru-no-wa-ore-no-xx-dake-na-ken-ni-tsuite-episode-1/
http://hentaihaven.org/eroge-h-mo-game-mo-kaihatsu-zanmai-episode-1/
http://hentaihaven.org/love-2-quad-episode-1/
http://hentaihaven.org/toshi-densetsu-series-episode-1-hd/

These are all some guaranteed good series that I think are high quality, feel free to watch.