Ordered in how likely you are to enjoy it. Be sure to check out their respective pages for descriptions and genres, some of these are dark, hard to comprehend and/or childish. Take Tsukihime for example. Lots of gore and some nudity with that one (and heavily implied sexual intercourse later on) so I can't recommend that to the average manga reader. However, I believe that Super Dreadnought Girl 4946 is a great read for beginners, it's a shonen-romance that utilizes cliches how they're meant to be used and is an enjoyable experience that's a bit under the radar. Just some examples on how diverse these recommendations are. Don't worry, more will be added later on.