@samdance I tend not to recommend anything I haven't owned & enjoyed and/or been very impressed with in serious seat-time in auditions. That being said, there is definitely a synergy or compatibility that needs to be considered when it comes to selecting major playmates like an amp & speakers. As such, I would definitely recommend auditioning whatever amp(s) interest you with your speakers before making a final decision. Here are some ideas for you to ponder: Musical Fidelity M6si + McIntosh MA5200 or anything McIntosh+ Simaudio Moon Neo 340 IX + Luxman + expertly refurbished Sansui + Yamaha.
F.Y.I. From "The Vintage Speaker": "The L112´s performance depends heavily on the correct positioning and elevation of the speakers in consideration to the room size."
JBL L112 Century II Speaker Review, Specs and Price - the Vintage Speaker Review
Good Luck & Happy Hunting!