Started with $1k speakers … what now?

I got into this hobby during Covid, browsing YouTube reviews my first speakers were Polk L100s and Sonus Faber Lumina 1s. Not bad as an entry point, but wondering what would be the next level is where a speaker is built with fewer compromises in the drivers and crossover design.  My hope was that in the $5k range truer “hifi” entry points may be found in a small room system with a REL t5x. My source and amplification is already in the $5k range. 
 

I visited a hifi store recently but was overwhelmed by the amount of choice and unsure what would be an upgrade based on first listening impressions alone. 
 

Thanks in advance for any insights.