The gacha p2w mechanic is (mostly) cosmetic items and I’ve had almost no issues running out of resources that are used to produce characters. You’re even incentivized to level low-rarity characters, since a lot of them can more than hold their own until the endgame, when you have more than enough resources to level some of the rarer ones. Not to mention all the character designs are all great and full of personality.
Implosion: Never Lose Hope is pretty good if you’re looking for some fun action and storytelling but I never got really far. Opus Rocket of Whispers has beautiful visuals and story if you’re interested in that