It Has to Be a Male-male Romance, Sweet from Start to Finish with No Angst.

Looking for books similar to The Merfolk Call You Bro Before They Cry, Then Take Down the Whole World Afterward. Is there anything that can stand alongside this one, something you fall in love with from the very first chapter, with no angst throughout, characters who actually communicate, no misunderstandings whatsoever, and where both leads clearly establish the other's primary position from the start?