1. concur
I concur. I've just finished my debut novel.
Ms. White concurred, but she cautioned it would take time.
I concur in the judgment
I concur with everything what you are saying.
2. fall in with something
English word "to agree with something"(fall in with something) occurs in sets:
Phrasal verbs with "to fall"3. hold with something
English word "to agree with something"(hold with something) occurs in sets:
Phrasal verbs with "to hold"