Try this IR pack. It has a wide variety of really good options. I personally love the Ampeg Heritage B15 cab and have been playing it for months now. I own a Darkglass Element and while that has nice cabs in the suite, there is just something about the sound of this particular IR that does it for me. I very highly recommend you give this pack a try. Also, not sure if this is a make or break for you, but this is in 24bit 48kHZ.
https://shift-line.com/irpackbass