@tigheandjudi does your HT space double as a 2 channel listening area or is it exclusively for HT duties?
I’ve been into HT since I was a kid, I got into 2 channel about 7 years ago. I had always listened to the advice that you wanted all your HT speakers to be voiced the same. Once I got into 2 channel I shifted, ignoring that and getting left / righty front speakers with 2 channel being the priority. I have a Dolby Atmos set up, 7 speakers total, not including 2 subs. The only matching speakers I have are a Focal center and Focal towers I actually use for the surround sound speakers in the back of my HT space. I haven’t ever noticed an issue with my HT set up, synergy having different brands, speakers mixed. Now, I have matching pairs, same speakers Left / Right fronts, same in ceiling Atmos speakers, same speaker rears.
The most important speakers in HT are the Center Channel, has the highest usage rate, then the Right / Left fronts.
If you are using the space exclusively for HT, I’d go with everything matching, if you are going to use the set up for 2 channel, prioritize the left / right fronts and don’t worry about matching or having the same brand.
One biggie is I have always had HT receivers that have Room Correction, this may be a big reason why I’ve never had an issue with mixed brands / speakers in my HT set up.
Good Luck.