Thanks for the help! Obviously I can't use Dartix as I chose Charmander, but will give Fearow a go. Was Also thinking I could bring one of the Lycanrocs down with Destiny Bond if I train up Drifloon before hand.
Thanks for the tips on the later fights as well!
I've done a flying monotype as well and the Aster & Eclipse fight on Azurine Island was one of the hardest fights on the run, without Victoria at your side. The rock weakness is hard to build against.
I found Dartrix and Fearow worked well in these fights, but other great options for Aster and Eclipse would be:
Jumpluff, as fast as a Lycanroc with sleep powder, leech seed and stab acrobatics
Vivillon, tinted lens, sleep powder, and quiver dance at level 45
Masquerain, intimidate, bubblebeam, quiver dance by move tutor
Tranquil, learns Roost early which removes rock weakness on top of healing if used first
Best of luck!!