OH Predictive Insights did a poll of the race. They are not known for good results(they thought McSally would win by high single digits, the only firm to think so), but if you want to check it out, here it is.
https://thehill.com/homenews/campaign/430046-poll-shows-mcsally-kelly-tied-in-arizona-senate-race
Stats:
Mcsally vs Kelly: 46/44 McSally
McSally vs Gallego: 49/42 McSally
McSally approval: 51/42(net approval +9, 7% dont know)
Kelly Approval: 41/21(net +20, 38% dont know)
Gallego approval: 30/23(net +7, 47% dont know)
Yeah, these are (expectedly) terrible numbers for McSally. She should be doing a lot better with this particular (hack) firm.