The first thing to do is provide a budget. how much do you want to spend?
Most standard AVRs will work with Sub/satellite, bookshelf or tower speakers.
Provide this info:
2. Size of room
3. Use for receiver? Movies, Music, Gaming, what %?
4. What devices will you be connecting?
5. Do you need networking, music streaming from smartphones, iPad, etc?
6. How many speakers will you connect? 5.1? 7.1? More?
I've used my 8-9 year old Harman Kardon AVR 325 with satellite, bookshelf and tower speakers. As long as the AVR is decent it can work with all of those. Something with adjustable crossovers would be nice. Nowadays its more about what features you want than anything.