I love Bowen from the IAD series to! And Vikings have a soft spot on me as well. But my favorite must be Lochlan MacAllister. I can't help it, but he's my warrior.
My relationship started with a friendship. I remember that we werw playing a game of darts twice a week and that we were having more fun every week that went by. Still, it took us over a year to finally kiss for the first time. That was in 2000 and we are still together. Married for five years. So, yeah, i like friend-to-lovers stories very much!