Pool one's interests synonyms

What is another word for Pool one's interests?

• go cahoots
• unite with
• hitch horses
• stand together
• join with
• in cahoots
• join up with
• tie in with
• stand up with
• tie up with
• join together
• make common cause with
• throw in with
• join forces
• hook up with
• join fortunes with
• join
• stand in with
• go along with
• go hand in hand with
• cast in one's lot with
• side with
• strike in with
• take sides with
• swing in with
• act with
• go in with
• join one's fortunes with
• line up with
• range with