The license that I generally point people to is the "pro license" used on gamedevmarket: https://www.gamedevmarket.net/terms-conditions/#pro-licence
In short: it allows any use except direct redistribution. Edits are fine, commercial use is OK, no engine limitations. And on a personal note I do not require to be credited for any assets I've made (as long as they're not attributed to someone else).
The terms are the same for everything I've released for free or on my patreon. I am very open with the terms and like to avoid limitations.
Hope that helps.