Only the first chapter of Sessions has an unofficial translation because the peeps doing it fell off the planet.
As for fan fics I think you may wanna try:
If for Arc Furnace specifically you could try:
What Embers Remain.
Cinder's Awkard First Date.
A Monster's Marriage.
If you can stomach Coeur then you could try Stress Relief.>>104787848
This week is the break, next week it's business as usual.