There is a website called Suiteness that can be helpful for searching options in some cities - cutting down your list of properties to look at specific rooms.

My family needs 2 BR & 2 Bathrooms these days. Hilton offers guaranteed connecting rooms at many properties now - that has opened up our options beyond the extended stay brands. Outside of that I always see what my Homewood Suites, Staybridge Suites, or Residence Inn options are. If you just need a 1 BR with a door that closes + couch, it opens up several other options like Embassy Suites, Townplace, etc.

We also use AirBnB/VRBO more often - filters are easy to specify bedrooms/bathrooms.