Need a travelling companion for Cambodia and Laos trip

I will travel solo in March in Cambodia and Laos

My plan will be following draft itinerary:

16 March, arrive Saigon

17 March, Sai gon

18 March, Phnom Penh

19 March, Phnom Penh

20 March, Phnom Penh - Siem Reap

21 March, Siem Ream

22 March, Siem Reap

22 March, Vientiane

23 March, Vientiane – Luang prabang

24 March, Luang Prabang

25 March, Luang prabang – DBP

1. Does anyone recommend a clean, safe guesthouse following itinerary?

2. Did anyone do this trip before?

3. It would be great if someone can become a companion with me on this trip.

4. I am packpacker traveler, just wanna see real life experiences like local people.