Avatar/Kaden - I'd be more cautious with this one only because your children will always have beast and dragon weakness, but that isn't that prevalent of an issue within the game itself iirc. For a pairing like this, I probably would have gone +spd/-mag, but oh well.
Laslow/Azura - Terrible defense on Shigure and Soleil, so just make sure they can avoid most hits since they'll pretty much have to, and Azura's speed mod shouldn't be too hindered by Laslow's
Jakob/Nyx - Pretty good pairing from my experience; just make sure Dwyer is a physical and magic class to make the most of him
Silas/Hinoka - Another pretty alright pairing from my experience, but Sophie might fair better as a Hero than a Paladin
Kaze/Setsuna - Probably could have chosen a better pairing for this one, but I assume you want Midori to be ridiculously fast, so this works
Ryoma/Camilla - Probably would have done another one with this since they're both good
Takumi/Oboro - Another one where both parents are pretty good
Saizo/Orochi - Pretty standard; just treat Asugi similar to Dwyer
Hinata/Kagero - Probably could have chosen a better one for this; just make Hisame a physical, tanky class
Azama/Rinkah - Another pretty meh pairing; Mitama will be fairly fast and tanky, but you might have to worry about her strength for a bit (I normally do Takumi/Rinkah and Azama/Oboro cause Mitama's class options are pretty poor for her)
Subaki/Hana - Good pairing for Falcon Knight!Caeldori
Hayato/Felicia - Not bad, but could be better (I normally do Hayato/Nyx and Jakob/Felicia)
Xander/Charlotte - Also not bad, but could be better in regard to Siegbert's defenses
Leo/Sakura - Good pairing for Strategist!Forrest
Benny/Beruka - Good pairing for General!Ignatius
Keaton/Effie - Pretty good for Velouria
Arthur/Mozu - Could be better if you plan on making Percy a Wyvern Lord (I normally pick Kagero cause of her mods), but should work fine anyway
Odin/Elise - Good pairing for a magic Ophelia
Niles/Selena - Not really good; Nina will have poor strength and skill and less promotions, but she should be fine with the right skills as a Bow Knight or smth similar (I pair Niles with Peri typically, but that's only good if you plan on Nina being an Adventurer)