Considering used towers under $1000..

A pair of used Vandersteen 1Ci's should fit the bill!
https://www.vandersteen.com/products/model-1ci

NOTE:

GERSHMAN Sonogram, not Gershwin. In case you search for them. Great recommendation, too.

https://www.audiogon.com/listings/lis97h27-gershman-acoustics-sonogram-great-speakers-cheap-full-ran...


By the way, if you could throw a rug or two somewhere on the floor, it may be worth it.

Yes, sorry--writing quickly. They sound way better than I spell.....

They are respectable but for sure needs decent powered Subwoofer, also rebuild the Xover with higher quality capacitors 
bare minimum very good upgrade. If you or a friend can solder.

Another "by the way":

It is unlikely that any of the speakers in the range you are looking for ($1000 used, probably at most $2000 new) will give you really deep bass. Others may add to that thought if having more experience as there are many speakers I have never heard (of).

I think audioman58's recommendation may be what you need, if bass is of importance.