I'd hold out for the next gen tablets that'll be on sale for black Friday. Until then, you can buy a used N7 (2013) for like $90 to hold you over.

Or if you're really set on getting a more permanent replacement, here's a $239 deal on the Samsung Galaxy Tab S2 (two year old tablet, has Android 6.0, 3 Gb RAM): https://slickdeals.net/f/10514184-32gb-samsung-galaxy-tab-s2-8-0-inch-wi-fi-tablet-for-239-free-shipping?src=catpagev2_SearchBarV2_cat

The $299 Huawei MediaPad M3 also looks promising (Android 6.0, first released last September, 4 Gb RAM): https://www.amazon.com/dp/B01LB08BH6/ref=cm_sw_r_cp_apa_hWpQzb7S7YA63