Ryzen and Threadripper and the newest intel processors only have DDR4 memory controllers in them.
You'll want to look at some of the 6th generation Intel processors which still supported DDR3L (pretty much DDR3 but running at 1.35v instead of 1.5v) . If you have regular 1.5v DDR3 memory sticks, you may be able to run them at 1.35v by lowering the frequency substantially (let's say to 1066 Mhz or 1333 Mhz, down from 1600-1866 Mhz)
Lots of socket 1150 and socket 1151 will support DDR3L , socket 1155 motherboards that still support DDR3 or DDR3L are rare .. for example GIGABYTE GA-H77M-D3H would be one of them but supports only up to 3rd generation Intel cpus
For socket 1151, look for GIGABYTE GA-Z170-HD3 DDR3 or ASUS Z170M-E D3 these support the 6th and 7th series cpus with ddr3 controller ... if you're lucky maybe you can score a 6600k or 7700k if you're into gaming.
If you're not into overclocking, there's some boards based on h170 chipset like GIGABYTE GA-H170M-HD3 DDR3 , ASUS H170M-E D3 , ASUS H170-PLUS D3 or B150 chipset ... like ASUS B150M-A D3 , GIGABYTE GA-B150M-D3H DDR3 , GIGABYTE GA-B150-HD3 DDR3 , ASUS B150M-C D3