I think complementing names can be cute, but too matchy just isn't my preference. For example names that have the same nick name like Jayden and Jaylen I think are too close as they would both likely answer to Jay
Some combos I think still coordinate in an obvious way but have a little more individuality -
Nick and Noah
Troy and Tristan
Jayden and Julian (think this is a nice mix of your styles as well)
Malcom and Mason (Mack & Mase)
Adrian and Bellamy (Twin A and Twin B)
Max and Wells (both halves of Maxwell)
Cassian and Christopher (Kaz & Kit)
Cole and Clay
Sebastian and Nicholas (start and end with S/N)
Evan and Ezra
Leopold and Conrad (both end in -d)
Sterling and Spencer
Niall and Brooks (water)
Hawthorne and Holden (both literary classic names)
Lance and Lincoln
Nico and Owen (start/end with N/O)
Fitz and Ford
Will and Liam (two parts of William)
Asher and Archer (Ash and Archie)
Kieran and Quentin
Maxim and Marcel
Alec and Xavier (both derivations of Alexander)
Nico and Elio
Dawson and Dimitri
Flint and Brooks (fire & water)