Some would say, half seriously, that everything translates to, "let's have sex" in the US. But they would be half wrong! In the dating context you describe ""Let's meet so we can get a better feel for each other" is most likely innocent of that charge and is a very common expression where the word "feel" means: to sense or perceive. So the import of the sentence is something like this: Let's meet so we can get to know each other better. In other words, let us spend some time together so we can each get an improved understanding of each other. Could be the start of something beautiful! Best of luck. :-)
Feel verb: feel; 3rd person present: feels; past tense: felt; past participle: felt; gerund or present participle: feeling
1: be aware of (a person or object) through touching or being touched.
"she felt someone touch her shoulder"
synonyms: perceive, sense, detect, discern, notice, be aware of, be conscious of