I have both a Howa 1500 and a Ruger in 7.62x39.
The Howa is much more refined in fit and finish and is basically a Remington 700 mini action Howa 5rd mags are hard to find - they seem to come out in batches. But, how many are really needed for a bolt-action? MDT makes 10rd mags and are readily available from their website, but are expensive ($120). My Howa also has 1/2x28 threads which are not common for 30 caliber muzzle devices. I found an AAC 51t flashhider I like. I also like the olive drab sporter stock it came with.
The Ruger takes mini-30 mags which are readily available. Ruger 10rd mini-30 mags may have issues (check online reviews) - stick with 5rd or 20rd mags. It has 5/8x24 threads which are very common for 30 caliber. There is a last round bolt hold open feature when a mag remains inserted which I don’t care for.
Hope that helps.