I have the HP 445 G7 (see quick review in another thread). I've been using 2 x 16 GB Kingston HyperX DDR4 SODIMM with absolutely no issues. FYI, the 445 G7 Bios is rather dumbed-down; given it's a business model, you don't have access to the more advanced options (i.e., memory timings, voltages etc) that you do on other more enthusiast-focussed models (they do however give you an option to limit your battery charge to 80% if it's going to be plugged in most of the time).

Based on the processor:

https://ark.intel.com/content/www/us/en/ark/products/208921/intel-core-i7-1165g7-processor-12m-cache-up-to-4-70-ghz-with-ipu.html

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You'll want something like this kit:

https://www.amazon.com/gp/product/B084929MWL/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&th=1

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You can go down in clock speed to the spec base (2400MHz, I think), but if you're gaming or such you'll want the top you can put into it.

I purchased HyperX gaming RAM. XMP automatically set it to 3200 mhz without having to adjust anything else.

https://www.amazon.com/dp/B084929MWL/ref=cm_sw_r_cp_apa_glt_fabc_ZWY5B1QHNQGJ6VN0D987?_encoding=UTF8&psc=1