Suggest Hero thinks heroine is unsuitable for the other man

[crazy1bad]

Pls recommend me romance books where the hero thinks the heroine is unsuitable (he thinks she is a gold digger or who*re or something) for his nephew, son, or friend etc she is dating. I especially love older harlequin ones but you can suggest any romance books you think fit the plot

Here are those I have read (you can see approximately which type I mean):

Falcon's Prey
Echoes of the Past
Love Play
A Durable Fire
The Count's Blackmail Bargain
Desert Prince, Bride of Innocence
The Spaniard's Seduction (Latin Lovers)
Relentless Seduction

[JE]

Kathleen turner series by Tiffany Snow

[Crystal]

Pride and Prejudice jumps into my head but I'm not sure if that's what you're looking for