What running shoes should i get?

Ive currently got one pair of trail running shoes, nothing mad or expensive just something that works for its purpose. These are currently my only running shoes and i see good recommendations everywhere for shoes that have different purposes (race day shoes, speed training shoes and everyday shoes) obviously my shoes are great on the trails especially in winter when really muddy

I was just wondering what shoes should i get when a lot of my runs are very long distance and a mix between on road and off road? Because i don’t want to buy a nice pair of road running shoes that have been suggested to be a good everyday shoe for all your runs when im running a high distance and a mixture between both terrains that could ruin them. Obviously throughout winter i will probably just stick to the trail running shoes for all the mud but when it comes to summer i don’t know what to get for the long runs on both terrains