I read an old issue of a Thai audio magazine, in which a Denon DL 110 was tested in combination with a Rega RB 300 and its performance proved satisfactory, according to the reviewer. So I think with your RB 250 the result would be the same. Another choice is the DL 160 model, which is a high-output cartridge and costs a little more than the DL 110. I'm using the DL 160, inter alia, with my Dynavector DV 505 tonearm and the sound proves satisfactory and pleasant to my ears.
Both the models of Denon are not expensive and they are worth listening.