Had same issue and this is working great!

ZONKIE 5/6/7/8-Speed Bicycle... https://amzn.to/3LcRtqH

Had same issue and moved seat back but then had too much weight forward causing my forearms to get fatigued/sore next day. In talking to bike shop they suggested for taller riders sitting more upright can help. Got this and it solved my feeling cramped/too close and forearm soreness. Hope it can help, being Amazon if it doesn't free return.

DELTA Threadless Riser Stem https://amzn.to/3NH1lcA

I've tried 6 different mountain bike/slimmer seats with Suntour post (which agreed is awesome!). This recommendation will make some chuckle at first glance butt really works well for me.

Schwinn Comfort Bike Seat https://amzn.to/3zUx5Fv

Wife had similar seat that came stock on Schwinn beach cruiser, had me put it on her Suntour seat post for a Runner.  Finally broke down and tried-loved it. Was hard to get over looking at this seat on such a badass looking fat tire bike but after couple weeks I've convinced myself it actually looks good and 45 mile rides are total different experience.

Have serval Rad models and 3 different type of mirrors. All came from Amazon this being hands down fav thus far. Wider view works great on RR6+
MEACHOW 2022 New Bar End Bike Mirror, Crystal UHD Automo... https://amzn.to/3zTzvUD