The EI regional base at BHD will give a decent schedule, MAN will be 5 a day for example, and now BA Cityflyer on LCY. You really can't judge the current frequencies against what FlyBe did in 2019 as COVID is the reason the flights are not running, I really do think from May 17th, and more so from June that there will be a ramp up in both flights and more importantly passenger numbers ...
there are still big gaps left in many ex FlyBe bases, even some of the ones people dismiss like CWL and DSA, FlyBe in those bases doing sunshine routes was always questionable, but I hear some of the key regional routes (like AMS, BHD etc) did well for them.