Any good 80-90mm travel forks?
Yes, there are decent 27.5" 80mm forks. Generally, most of good forks allow to reduce travel, usually by a spacer in air spring.

For example:


Official product page of MRP Loop SL claims there's a 27.5" 80mm option available.
Manitou Machete has a 27.5" 100mm option with ability to adjust travel.
2013 RockShox SID service manual mentions travel adjustment in range from 80mm to 120mm for 27.5" model:



I'm sure there are more forks like that.