Are you looking for something similar to Pathfinder/3.5? Check out Basic Fantasy RPG first. It's free if you just need a PDF, and the books are basically at cost otherwise. Easy and cheap to investigate, at least!

Fantasy Craft may also be a D&D alternative you'd like if "crunch" is your group's style instead.

Palladium Books has a bunch of good alternatives inside and out of fantasy: superheroes, ninjas, dwarves and wizards, and so on.

Shadow of the Demon Lord offers a Warhammer-styled grimdark option that has become popular outside the mainstream.

Something I've only looked at briefly, but has many elements to be interested with, is Open Legend. Ed Greenwood and Matt Mercer (both names I'd guess you know by now) are behind it. Like Basic Fantasy RPG, this is an open source game with tons of potential.

Are you looking for something similar to Pathfinder/3.5? Check out Basic Fantasy RPG first. It's free if you just need a PDF, and the books are basically at cost otherwise. Easy and cheap to investigate, at least!

Fantasy Craft may also be a D&D alternative you'd like if "crunch" is your group's style instead.

Palladium Books has a bunch of good alternatives inside and out of fantasy: superheroes, ninjas, dwarves and wizards, and so on.

Shadow of the Demon Lord offers a Warhammer-styled grimdark option that has become popular outside the mainstream.

Something I've only looked at briefly, but has many elements to be interested with, is Open Legend. Ed Greenwood and Mike Mercer (both names I'd guess you know by now) are behind it. Like Basic Fantasy RPG, this is an open source game with tons of potential.