I understand that the V7 chord contains two tendency tones (^4 and ^7), which for a tritone in major keys. The ^4 forms a dissonance with the bass and the ^7 tends strongly to move to ^8. For these reasons, V7 is a crucial chord for building tension in cadences, which can then be released via authentic cadences (or not in deceptive cadences).
I am curious as to how I can further expand a V7 chord, through inversions or otherwise, to build additional suspense before introducing a I chord. I have looked into the inversions of V7--V65, V43, and V42--but I question whether those progressions are logical in terms of theory. Do you have any suggestions? Will a plain ol' V-V7 sequence always be the most natural/smooth sounding? Thank you.
Note: I am not interested in any use of chromaticism at the moment--trying to find diatonic solutions here. Thanks.