@AnthonyJ I live in Kalispell & these are my favorites that guarantee you will not be alone (always carry bear spray though):
At Logan's pass:
I'd suggest you get to Logan's Pass no later than 7 AM to get a parking spot.
- Hidden Lake (go all the way to the lake) -no chance of being alone on this one but it's totally worth it. The trail is a little challenge once you get past the overlook & back but relatively easy https://hike734.com/hiking/hidden-lake/
- Highline Trail is super well traveled. https://hike734.com/hiking/highline-trail/ but I'd suggest an out & back ~14 miles instead of going down to the Loop. Turnaround at Granite Park Chalet & go back to Logan's pass. Otherwise, the 4 miles down to the Loop (from Granite Chalet) is absolutely miserable (straight down and not much to look at) and I'm not sure if the shuttles will be running to get you back to Logan's Pass. The trail is really easy, not much up and down and the views are some of the best in the park.
At Avalanche Creek:
This parking lot fills quickly too, if the shuttles are not running this year, get there really early to get a park:
- Avalanche Lake/Trail of the Cedars: super easy trail, tons of people but beautiful view of the lake: https://hike734.com/hiking/avalanche-lake/
Always check the trail status: https://www.nps.gov/glac/planyourvisit/trailstatusreports.htm