I would suggest, as others have, something along the lines of either Seforno or the Ramban. However, one of the best options to my mind is to begin learning the commentary of the Malbim (מלבי"ם - Rav Meir Leibush Ben Yechiel Michel z"l).
If you can read the Hebrew, then I suggest getting a set and using that, but if you can't then Artscroll has a series entitled "The Essential Malbim" which is an abridged version of his comments in English. Although it currently only includes Bereshith and Shemoth, including these works into your study program will benefit you greatly.
So, why specifically the Malbim? Well, he is a fairly recent commentator on the entire Torah (19th century) and is hailed as being the pashut peshat ("the simplest and most plain meaning") by many - even (and especially) beyond that of Rashi. He seeks to be reasonable and in line with current Biblical scholarship while maintaining a fidelity to the aggadic tradtions of the gemara and midrashim (but without allowing them to completely dictate his plain understanding of the text). Many of his comments on Bereshit seem to almost "foresee" the world and findings of modern science and archaeology as it relates to the narratives of the Tanakh.
For example, one such instance can be found in his comments on Parashath Noahh where he concludes based on the language of the Torah that only domesticated animals were brought into the teva (pop. "ark"). The implications of this are massive and for a scholar in the 19th century to make such a claim is extremely interesting and telling indeed.
All in all, my suggestion to you is to give the Malbim a try. I am sure that you will enjoy him.
Hope this helps. Kol tuv.