I use these, they stack maybe half an inch in each other, but don't have the removable gaskets for the lids. I have been using them for 6 months now I think and I love them.

Prep Naturals Glass Meal Prep Containers (5 Pack, 36 Ounce) - Glass Food Storage Containers with Lids - Food Containers Food Prep Containers Glass Storage Containers with Lids Glass Lunch Containers https://www.amazon.com/dp/B07JK1LGHQ/ref=cm_sw_r_apan_glt_fabc_7G9S3C0TBDKMEA032GZQ?_encoding=UTF8&psc=1

I bought these containers a couple weeks ago, and no problems yet! I have put soup into these and they seemed to be leakproof https://www.amazon.com/dp/B07JK1LGHQ/ref=cm_sw_r_cp_apa_fabc_YG7JNVN5JF1HC99450V4?_encoding=UTF8&psc=1

I bought myself and my spouse these lunch bags 2 years ago, because they like to pack a lot snacks like apples, crackers, pretzels, nuts and such in their lunch bag for work in addition to the food we prep...the glass containers fit into both compartments just fine: https://www.amazon.com/dp/B07FTF6KX2/ref=cm_sw_r_cp_apa_fabc_1MQ2D384WEDEJ5TN3DKM?_encoding=UTF8&psc=1

let me know if you have any other questions :)

I use these

https://www.amazon.com/gp/product/B07JK1LGHQ/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

enough for 5 days worth of meals, been leak proof, easy to clean

edit: I don't microwave the lids