You sound exactly like a past me. Started 100% Innova as a comfort zone. Started to try out Discraft but wosn't impressed enough to make any real changes there. My next shift was trying out Discmania and Millennium which share production, making it feel very Innova family as I got used to other companies. Then I broke heavily into the European family with Latitude 64 and Westside. I've tasted some DGA, Dynamic Discs, Gateway, Legacy, MVP, Prodigy, and Vibram along the way, but nothing stuck. Basically any company that offers premium plastic is ok in my book. Its all personal preference about flight path and molds after that.
I've settled after years on 5 manufacturers.
By mold (11):
4 Latitude 64
2 Innova
2 Westside
2 Discmania
1 Discraft
By disc (20):
6 Latitude 64
5 Innova
4 Westside
3 Discmania
2 Discraft
Latitude 64: 2 Sinuses, 2 Pains, Trident, Diamond
Innova: 2 Xcalibers, 3 Wraiths
Westside: 2 Swan2s, 2 Kings
Discmania: 2 FD Jackals, TD Rush
Discraft: 2 Trackers
I highly recommend finding 4 discs that feel GREAT and can be go-to workhorses for a ton of shots. 1 putter, mid, fairway, and distance driver. Then build the rest of your bag around shots that those particular molds cannot accomplish. For me it was the Swan, Pain, Tracker, Wraith. I spaced out the rest of my disc choices for lines that those 4 discs could not accomplish, even though the majority of my shots would use those 4 mains.