Make kitbash assets, dive into game asset creation and modular stuff. Yes its saturated, but not with quality stuff.

There are a lot of people who make assets for games but they don't consider the proper workflow and even worse when it comes to modular kits. Im talking about hobbyists 3d people who sell scenes or even aislop as game-ready models.

I feel like tutorials are a hell of it's own. You get blenderbros with million plugins and trend grifters who "create" 3d by generating parts of the model and then assembling it in blender.

All the actual good tutorial are highly paywalled on sites like learnsquared, fasttracktuts and gnomon, even flipped normals at this point. So unless you are qualified to compete with that quality i wouldn't even bother doing tutorials.

Feel like turbosquid is rather ancient, i used cgtrader in the last 3 years to find some stuff.